# # National Water Information System # 2023/03/21 # # # Date Retrieved: USGS Water Data for the Nation Help System # huc_cd huc_class_cd huc_nm 8s 15s 51s 01 Region New England Region 0101 Subregion St. John 010100 Accounting Unit St. John 01010001 Cataloging Unit Upper St. John 01010002 Cataloging Unit Allagash 01010003 Cataloging Unit Fish 01010004 Cataloging Unit Aroostook 01010005 Cataloging Unit Meduxnekeag 0102 Subregion Penobscot 010200 Accounting Unit Penobscot 01020001 Cataloging Unit West Branch Penobscot 01020002 Cataloging Unit East Branch Penobscot 01020003 Cataloging Unit Mattawamkeag 01020004 Cataloging Unit Piscataquis 01020005 Cataloging Unit Lower Penobscot 0103 Subregion Kennebec 010300 Accounting Unit Kennebec 01030001 Cataloging Unit Upper Kennebec 01030002 Cataloging Unit Dead 01030003 Cataloging Unit Lower Kennebec 0104 Subregion Androscoggin 010400 Accounting Unit Androscoggin 01040001 Cataloging Unit Upper Androscoggin 01040002 Cataloging Unit Lower Androscoggin 0105 Subregion Maine Coastal 010500 Accounting Unit Maine Coastal 01050001 Cataloging Unit St. Croix 01050002 Cataloging Unit Maine Coastal 01050003 Cataloging Unit St. George-Sheepscot 01050004 Cataloging Unit Passamaquoddy Bay-Bay of Fundy 0106 Subregion Saco 010600 Accounting Unit Saco 01060001 Cataloging Unit Presumpscot 01060002 Cataloging Unit Saco 01060003 Cataloging Unit Piscataqua-Salmon Falls 0107 Subregion Merrimack 010700 Accounting Unit Merrimack 01070001 Cataloging Unit Pemigewasset 01070002 Cataloging Unit Merrimack 01070002 Cataloging Unit Winnipesaukee River 01070003 Cataloging Unit Contoocook 01070004 Cataloging Unit Nashua 01070005 Cataloging Unit Concord 01070006 Cataloging Unit Merrimack River 0108 Subregion Connecticut 010801 Accounting Unit Upper Connecticut 01080101 Cataloging Unit Upper Connecticut 01080102 Cataloging Unit Passumpsic 01080103 Cataloging Unit Waits 01080104 Cataloging Unit Upper Connecticut-Mascoma 01080105 Cataloging Unit White 01080106 Cataloging Unit Black-Ottauquechee 01080107 Cataloging Unit West 010802 Accounting Unit Lower Connecticut 01080201 Cataloging Unit Middle Connecticut 01080202 Cataloging Unit Miller 01080203 Cataloging Unit Deerfield 01080204 Cataloging Unit Chicopee 01080205 Cataloging Unit Lower Connecticut 01080206 Cataloging Unit Westfield 01080207 Cataloging Unit Farmington 0109 Subregion Massachusetts-Rhode Island Coastal 010900 Accounting Unit Massachusetts-Rhode Island Coastal 01090001 Cataloging Unit Charles 01090002 Cataloging Unit Cape Cod 01090003 Cataloging Unit Blackstone 01090004 Cataloging Unit Narragansett 01090005 Cataloging Unit Pawcatuck-Wood 0110 Subregion Connecticut Coastal 011000 Accounting Unit Connecticut Coastal 01100001 Cataloging Unit Quinebaug 01100002 Cataloging Unit Shetucket 01100003 Cataloging Unit Thames 01100004 Cataloging Unit Quinnipiac 01100005 Cataloging Unit Housatonic 01100006 Cataloging Unit Saugatuck 01100007 Cataloging Unit Long Island Sound 0111 Subregion St. Francois 011100 Accounting Unit St. Francois 01110000 Cataloging Unit St. Francois 02 Region Mid Atlantic Region 0201 Subregion Richelieu 020100 Accounting Unit Richelieu 02010001 Cataloging Unit Lake George 02010002 Cataloging Unit Otter 02010003 Cataloging Unit Winooski 02010004 Cataloging Unit Ausable 02010005 Cataloging Unit Lamoille 02010006 Cataloging Unit Great Chazy-Saranac 02010007 Cataloging Unit Missisquoi 0202 Subregion Upper Hudson 020200 Accounting Unit Upper Hudson 02020001 Cataloging Unit Upper Hudson 02020002 Cataloging Unit Sacandaga 02020003 Cataloging Unit Hudson-Hoosic 02020004 Cataloging Unit Mohawk 02020005 Cataloging Unit Schoharie 02020006 Cataloging Unit Middle Hudson 02020007 Cataloging Unit Rondout 02020008 Cataloging Unit Hudson-Wappinger 0203 Subregion Lower Hudson-Long Island 020301 Accounting Unit Lower Hudson 02030101 Cataloging Unit Lower Hudson 02030102 Cataloging Unit Bronx 02030103 Cataloging Unit Hackensack-Passaic 02030104 Cataloging Unit Sandy Hook-Staten Island 02030105 Cataloging Unit Raritan 020302 Accounting Unit Long Island 02030201 Cataloging Unit Northern Long Island 02030202 Cataloging Unit Southern Long Island 02030203 Cataloging Unit Long Island Sound 0204 Subregion Delaware-Mid Atlantic Coastal 020401 Accounting Unit Upper Delaware 02040101 Cataloging Unit Upper Delaware 02040102 Cataloging Unit East Branch Delaware 02040103 Cataloging Unit Lackawaxen 02040104 Cataloging Unit Middle Delaware-Mongaup-Brodhead 02040105 Cataloging Unit Middle Delaware-Musconetcong 02040106 Cataloging Unit Lehigh 020402 Accounting Unit Lower Delaware 02040201 Cataloging Unit Crosswicks-Neshaminy 02040202 Cataloging Unit Lower Delaware 02040203 Cataloging Unit Schuylkill 02040204 Cataloging Unit Delaware Bay 02040205 Cataloging Unit Brandywine-Christina 02040206 Cataloging Unit Cohansey-Maurice 02040207 Cataloging Unit Broadkill-Smyrna 020403 Accounting Unit Mid Atlantic Coastal 02040301 Cataloging Unit Mullica-Toms 02040302 Cataloging Unit Great Egg Harbor 02040303 Cataloging Unit Chincoteague 02040304 Cataloging Unit Eastern Lower Delmarva 0205 Subregion Susquehanna 020501 Accounting Unit Upper Susquehanna 02050101 Cataloging Unit Upper Susquehanna 02050102 Cataloging Unit Chenango 02050103 Cataloging Unit Owego-Wappasening 02050104 Cataloging Unit Tioga 02050105 Cataloging Unit Chemung 02050106 Cataloging Unit Upper Susquehanna-Tunkhannock 02050107 Cataloging Unit Upper Susquehanna-Lackawanna 020502 Accounting Unit West Branch Susquehanna 02050201 Cataloging Unit Upper West Branch Susquehanna 02050202 Cataloging Unit Sinnemahoning 02050203 Cataloging Unit Middle West Branch Susquehanna 02050204 Cataloging Unit Bald Eagle 02050205 Cataloging Unit Pine 02050206 Cataloging Unit Lower West Branch Susquehanna 020503 Accounting Unit Lower Susquehanna 02050301 Cataloging Unit Lower Susquehanna-Penns 02050302 Cataloging Unit Upper Juniata 02050303 Cataloging Unit Raystown 02050304 Cataloging Unit Lower Juniata 02050305 Cataloging Unit Lower Susquehanna-Swatara 02050306 Cataloging Unit Lower Susquehanna 0206 Subregion Upper Chesapeake 020600 Accounting Unit Upper Chesapeake 02060001 Cataloging Unit Upper Chesapeake Bay 02060002 Cataloging Unit Chester-Sassafras 02060003 Cataloging Unit Gunpowder-Patapsco 02060004 Cataloging Unit Severn 02060005 Cataloging Unit Choptank 02060006 Cataloging Unit Patuxent 02060007 Cataloging Unit Blackwater-Wicomico 02060008 Cataloging Unit Nanticoke 02060009 Cataloging Unit Pocomoke 02060010 Cataloging Unit Chincoteague 0207 Subregion Potomac 020700 Accounting Unit Potomac 02070001 Cataloging Unit South Branch Potomac 02070002 Cataloging Unit North Branch Potomac 02070003 Cataloging Unit Cacapon-Town 02070004 Cataloging Unit Conococheague-Opequon 02070005 Cataloging Unit South Fork Shenandoah 02070006 Cataloging Unit North Fork Shenandoah 02070007 Cataloging Unit Shenandoah 02070008 Cataloging Unit Middle Potomac-Catoctin 02070009 Cataloging Unit Monocacy 02070010 Cataloging Unit Middle Potomac-Anacostia-Occoquan 02070011 Cataloging Unit Lower Potomac 0208 Subregion Lower Chesapeake 020801 Accounting Unit Lower Chesapeake 02080101 Cataloging Unit Lower Chesapeake Bay 02080102 Cataloging Unit Great Wicomico-Piankatank 02080103 Cataloging Unit Rapidan-Upper Rappahannock 02080104 Cataloging Unit Lower Rappahannock 02080105 Cataloging Unit Mattaponi 02080106 Cataloging Unit Pamunkey 02080107 Cataloging Unit York 02080108 Cataloging Unit Lynnhaven-Poquoson 02080109 Cataloging Unit Nanticoke 02080109 Cataloging Unit Western Lower Delmarva 02080110 Cataloging Unit Tangier 02080111 Cataloging Unit Pokomoke-Western Lower Delmarva 020802 Accounting Unit James 02080201 Cataloging Unit Upper James 02080202 Cataloging Unit Maury 02080203 Cataloging Unit Middle James-Buffalo 02080204 Cataloging Unit Rivanna 02080205 Cataloging Unit Middle James-Willis 02080206 Cataloging Unit Lower James 02080207 Cataloging Unit Appomattox 02080208 Cataloging Unit Hampton Roads 03 Region South Atlantic-Gulf Region 0301 Subregion Chowan-Roanoke 030101 Accounting Unit Roanoke 03010101 Cataloging Unit Upper Roanoke 03010102 Cataloging Unit Middle Roanoke 03010103 Cataloging Unit Upper Dan 03010104 Cataloging Unit Lower Dan 03010105 Cataloging Unit Banister 03010106 Cataloging Unit Roanoke Rapids 03010107 Cataloging Unit Lower Roanoke 030102 Accounting Unit Albemarle-Chowan 03010201 Cataloging Unit Nottoway 03010202 Cataloging Unit Blackwater 03010203 Cataloging Unit Chowan 03010204 Cataloging Unit Meherrin 03010205 Cataloging Unit Albemarle 0302 Subregion Neuse-Pamlico 030201 Accounting Unit Pamlico 03020101 Cataloging Unit Upper Tar 03020102 Cataloging Unit Fishing 03020103 Cataloging Unit Lower Tar 03020104 Cataloging Unit Pamlico 03020105 Cataloging Unit Pamlico Sound 03020106 Cataloging Unit Bogue-Core Sounds 030202 Accounting Unit Neuse 03020201 Cataloging Unit Upper Neuse 03020202 Cataloging Unit Middle Neuse 03020203 Cataloging Unit Contentnea 03020204 Cataloging Unit Lower Neuse 030203 Accounting Unit Onslow Bay 03020301 Cataloging Unit White Oak River 03020302 Cataloging Unit New River 0303 Subregion Cape Fear 030300 Accounting Unit Cape Fear 03030001 Cataloging Unit New 03030002 Cataloging Unit Haw 03030003 Cataloging Unit Deep 03030004 Cataloging Unit Upper Cape Fear 03030005 Cataloging Unit Lower Cape Fear 03030006 Cataloging Unit Black 03030007 Cataloging Unit Northeast Cape Fear 0304 Subregion Pee Dee 030401 Accounting Unit Upper Pee Dee 03040101 Cataloging Unit Upper Yadkin 03040102 Cataloging Unit South Yadkin 03040103 Cataloging Unit Lower Yadkin 03040104 Cataloging Unit Upper Pee Dee 03040105 Cataloging Unit Rocky 030402 Accounting Unit Lower Pee Dee 03040201 Cataloging Unit Lower Pee Dee 03040202 Cataloging Unit Lynches 03040203 Cataloging Unit Lumber 03040204 Cataloging Unit Little Pee Dee 03040205 Cataloging Unit Black 03040206 Cataloging Unit Waccamaw 03040207 Cataloging Unit Carolina Coastal-Sampit 03040208 Cataloging Unit Coastal Carolina 0305 Subregion Edisto-Santee 030501 Accounting Unit Santee 03050101 Cataloging Unit Upper Catawba 03050102 Cataloging Unit South Fork Catawba 03050103 Cataloging Unit Lower Catawba 03050104 Cataloging Unit Wateree 03050105 Cataloging Unit Upper Broad 03050106 Cataloging Unit Lower Broad 03050107 Cataloging Unit Tyger 03050108 Cataloging Unit Enoree 03050109 Cataloging Unit Saluda 03050110 Cataloging Unit Congaree 03050111 Cataloging Unit Lake Marion 03050112 Cataloging Unit Santee 030502 Accounting Unit Edisto-South Carolina Coastal 03050201 Cataloging Unit Cooper 03050202 Cataloging Unit South Carolina Coastal 03050203 Cataloging Unit North Fork Edisto 03050204 Cataloging Unit South Fork Edisto 03050205 Cataloging Unit Four Hole Swamp 03050206 Cataloging Unit Edisto River 03050207 Cataloging Unit Salkehatchie 03050208 Cataloging Unit Broad-St. Helena 03050209 Cataloging Unit Bulls Bay 03050210 Cataloging Unit St. Helena Island 0306 Subregion Ogeechee-Savannah 030601 Accounting Unit Savannah 03060101 Cataloging Unit Seneca 03060102 Cataloging Unit Tugaloo 03060103 Cataloging Unit Upper Savannah 03060104 Cataloging Unit Broad 03060105 Cataloging Unit Little 03060105 Cataloging Unit Upper French Broad 03060106 Cataloging Unit Middle Savannah 03060107 Cataloging Unit Stevens 03060108 Cataloging Unit Brier 03060109 Cataloging Unit Lower Savannah 03060110 Cataloging Unit Calibogue Sound-Wright River 030602 Accounting Unit Ogeechee 03060201 Cataloging Unit Upper Ogeechee 03060202 Cataloging Unit Lower Ogeechee 03060203 Cataloging Unit Canoochee 03060204 Cataloging Unit Ogeechee Coastal 0307 Subregion Altamaha-St. Marys 030701 Accounting Unit Altamaha 03070101 Cataloging Unit Upper Oconee 03070102 Cataloging Unit Lower Oconee 03070103 Cataloging Unit Upper Ocmulgee 03070104 Cataloging Unit Lower Ocmulgee 03070105 Cataloging Unit Little Ocmulgee 03070106 Cataloging Unit Altamaha 03070107 Cataloging Unit Ohoopee 030702 Accounting Unit St. Marys-Satilla 03070201 Cataloging Unit Satilla 03070202 Cataloging Unit Little Satilla 03070203 Cataloging Unit Cumberland-St. Simons 03070204 Cataloging Unit St. Marys 03070205 Cataloging Unit Nassau 0308 Subregion St. Johns 030801 Accounting Unit St. Johns 03080101 Cataloging Unit Upper St. Johns 03080102 Cataloging Unit Oklawaha 03080103 Cataloging Unit Lower St. Johns 030802 Accounting Unit East Florida Coastal 03080201 Cataloging Unit Daytona-St. Augustine 03080202 Cataloging Unit Cape Canaveral 03080203 Cataloging Unit Vero Beach 0309 Subregion Southern Florida 030901 Accounting Unit Kissimmee 03090101 Cataloging Unit Kissimmee 03090102 Cataloging Unit Northern Okeechobee Inflow 03090103 Cataloging Unit Western Okeechobee Inflow 030902 Accounting Unit Southern Florida 03090201 Cataloging Unit Lake Okeechobee 03090202 Cataloging Unit Everglades 03090203 Cataloging Unit Florida Bay-Florida Keys 03090204 Cataloging Unit Big Cypress Swamp 03090205 Cataloging Unit Caloosahatchee 03090206 Cataloging Unit Florida Southeast Coast 0310 Subregion Peace-Tampa Bay 031001 Accounting Unit Peace 03100101 Cataloging Unit Peace 03100102 Cataloging Unit Myakka 03100103 Cataloging Unit Charlotte Harbor 031002 Accounting Unit Tampa Bay 03100201 Cataloging Unit Sarasota Bay 03100202 Cataloging Unit Manatee 03100203 Cataloging Unit Little Manatee 03100204 Cataloging Unit Alafia 03100205 Cataloging Unit Hillsborough 03100206 Cataloging Unit Tampa Bay 03100207 Cataloging Unit Crystal-Pithlachascotee 03100208 Cataloging Unit Withlacoochee 0311 Subregion Suwannee 031101 Accounting Unit Aucilla-Waccasassa 03110101 Cataloging Unit Waccasassa 03110102 Cataloging Unit Econfina-Steinhatchee 03110103 Cataloging Unit Aucilla 031102 Accounting Unit Suwannee 03110201 Cataloging Unit Upper Suwannee 03110202 Cataloging Unit Alapaha 03110203 Cataloging Unit Withlacoochee 03110204 Cataloging Unit Little 03110205 Cataloging Unit Lower Suwannee 03110206 Cataloging Unit Santa Fe 0312 Subregion Ochlockonee 031200 Accounting Unit Ochlockonee 03120001 Cataloging Unit Apalachee Bay-St. Marks 03120002 Cataloging Unit Upper Ochlockonee 03120003 Cataloging Unit Lower Ochlockonee 0313 Subregion Apalachicola 031300 Accounting Unit Apalachicola 03130001 Cataloging Unit Upper Chattahoochee 03130002 Cataloging Unit Middle Chattahoochee-Lake Harding 03130003 Cataloging Unit Middle Chattahoochee-Walter F 03130004 Cataloging Unit Lower Chattahoochee 03130005 Cataloging Unit Upper Flint 03130006 Cataloging Unit Middle Flint 03130007 Cataloging Unit Kinchafoonee-Muckalee 03130008 Cataloging Unit Lower Flint 03130009 Cataloging Unit Ichawaynochaway 03130010 Cataloging Unit Spring 03130011 Cataloging Unit Apalachicola 03130012 Cataloging Unit Chipola 03130013 Cataloging Unit New 03130014 Cataloging Unit Apalachicola Bay 0314 Subregion Choctawhatchee-Escambia 031401 Accounting Unit Florida Panhandle Coastal 03140101 Cataloging Unit St. Andrew-St. Joseph Bays 03140102 Cataloging Unit Choctawhatchee Bay 03140103 Cataloging Unit Yellow 03140104 Cataloging Unit Blackwater 03140105 Cataloging Unit Pensacola Bay 03140106 Cataloging Unit Perdido 03140107 Cataloging Unit Perdido Bay 031402 Accounting Unit Choctawhatchee 03140201 Cataloging Unit Upper Choctawhatchee 03140202 Cataloging Unit Pea 03140203 Cataloging Unit Lower Choctawhatchee 031403 Accounting Unit Escambia 03140301 Cataloging Unit Upper Conecuh 03140302 Cataloging Unit Patsaliga 03140303 Cataloging Unit Sepulga 03140304 Cataloging Unit Lower Conecuh 03140305 Cataloging Unit Escambia 0315 Subregion Alabama 031501 Accounting Unit Coosa-Tallapoosa 03150101 Cataloging Unit Conasauga 03150102 Cataloging Unit Coosawattee 03150103 Cataloging Unit Oostanaula 03150104 Cataloging Unit Etowah 03150105 Cataloging Unit Upper Coosa 03150106 Cataloging Unit Middle Coosa 03150107 Cataloging Unit Lower Coosa 03150108 Cataloging Unit Upper Tallapoosa 03150109 Cataloging Unit Middle Tallapoosa 03150110 Cataloging Unit Lower Tallapoosa 031502 Accounting Unit Alabama 03150201 Cataloging Unit Upper Alabama 03150202 Cataloging Unit Cahaba 03150203 Cataloging Unit Middle Alabama 03150204 Cataloging Unit Lower Alabama 0316 Subregion Mobile-Tombigbee 031601 Accounting Unit Black Warrior-Tombigbee 03160101 Cataloging Unit Upper Tombigbee 03160102 Cataloging Unit Town 03160103 Cataloging Unit Buttahatchee 03160104 Cataloging Unit Tibbee 03160105 Cataloging Unit Luxapallila 03160106 Cataloging Unit Middle Tombigbee-Lubbub 03160107 Cataloging Unit Sipsey 03160108 Cataloging Unit Noxubee 03160109 Cataloging Unit Mulberry 03160110 Cataloging Unit Sipsey Fork 03160111 Cataloging Unit Locust 03160112 Cataloging Unit Upper Black Warrior 03160113 Cataloging Unit Lower Black Warrior 031602 Accounting Unit Mobile Bay-Tombigbee 03160201 Cataloging Unit Middle Tombigbee-Chickasaw 03160202 Cataloging Unit Sucarnoochee 03160203 Cataloging Unit Lower Tombigbee 03160204 Cataloging Unit Mobile-Tensaw 03160205 Cataloging Unit Mobile Bay 0317 Subregion Pascagoula 031700 Accounting Unit Pascagoula 03170001 Cataloging Unit Chunky-Okatibbee 03170002 Cataloging Unit Upper Chickasawhay 03170003 Cataloging Unit Lower Chickasawhay 03170004 Cataloging Unit Upper Leaf 03170005 Cataloging Unit Lower Leaf 03170006 Cataloging Unit Pascagoula 03170007 Cataloging Unit Black 03170008 Cataloging Unit Escatawpa 03170009 Cataloging Unit Mississippi Coastal 0318 Subregion Pearl 031800 Accounting Unit Pearl 03180001 Cataloging Unit Upper Pearl 03180002 Cataloging Unit Middle Pearl-Strong 03180003 Cataloging Unit Middle Pearl-Silver 03180004 Cataloging Unit Lower Pearl 03180005 Cataloging Unit Bogue Chitto 04 Region Great Lakes Region 0401 Subregion Western Lake Superior 040101 Accounting Unit Northwestern Lake Superior 04010101 Cataloging Unit Baptism-Brule 04010102 Cataloging Unit Beaver-Lester 040102 Accounting Unit St. Louis 04010201 Cataloging Unit St. Louis 04010202 Cataloging Unit Cloquet 040103 Accounting Unit Southwestern Lake Superior 04010301 Cataloging Unit Beartrap-Nemadji 04010302 Cataloging Unit Bad-Montreal 0402 Subregion Southern Lake Superior-Lake Superior 040201 Accounting Unit Southcentral Lake Superior 04020101 Cataloging Unit Black-Presque Isle 04020102 Cataloging Unit Ontonagon 04020103 Cataloging Unit Keweenaw Peninsula 04020104 Cataloging Unit Sturgeon 04020105 Cataloging Unit Dead-Kelsey 040202 Accounting Unit Southeastern Lake Superior 04020201 Cataloging Unit Betsy-Chocolay 04020202 Cataloging Unit Tahquamenon 04020203 Cataloging Unit Waiska 040203 Accounting Unit Lake Superior 04020300 Cataloging Unit Lake Superior 0403 Subregion Northwestern Lake Michigan 040301 Accounting Unit Northwestern Lake Michigan 04030101 Cataloging Unit Manitowoc-Sheboygan 04030102 Cataloging Unit Door-Kewaunee 04030103 Cataloging Unit Duck-Pensaukee 04030104 Cataloging Unit Oconto 04030105 Cataloging Unit Peshtigo 04030106 Cataloging Unit Brule 04030107 Cataloging Unit Michigamme 04030108 Cataloging Unit Menominee 04030109 Cataloging Unit Cedar-Ford 04030110 Cataloging Unit Escanaba 04030111 Cataloging Unit Tacoosh-Whitefish 04030112 Cataloging Unit Fishdam-Sturgeon 040302 Accounting Unit Fox 04030201 Cataloging Unit Upper Fox 04030202 Cataloging Unit Wolf 04030203 Cataloging Unit Lake Winnebago 04030204 Cataloging Unit Lower Fox 0404 Subregion Southwestern Lake Michigan 040400 Accounting Unit Southwestern Lake Michigan 04040001 Cataloging Unit Little Calumet-Galien 04040002 Cataloging Unit Pike-Root 04040003 Cataloging Unit Milwaukee 0405 Subregion Southeastern Lake Michigan 040500 Accounting Unit Southeastern Lake Michigan 04050001 Cataloging Unit St. Joseph 04050002 Cataloging Unit Black-Macatawa 04050003 Cataloging Unit Kalamazoo 04050004 Cataloging Unit Upper Grand 04050005 Cataloging Unit Maple 04050006 Cataloging Unit Lower Grand 04050007 Cataloging Unit Thornapple 0406 Subregion Northeastern Lake Michigan-Lake Michigan 040601 Accounting Unit Northeastern Lake Michigan 04060101 Cataloging Unit Pere Marquette-White 04060102 Cataloging Unit Muskegon 04060103 Cataloging Unit Manistee 04060104 Cataloging Unit Betsie-Platte 04060105 Cataloging Unit Boardman-Charlevoix 04060106 Cataloging Unit Manistique 04060107 Cataloging Unit Brevoort-Millecoquins 040602 Accounting Unit Lake Michigan 04060200 Cataloging Unit Lake Michigan 0407 Subregion Northwestern Lake Huron 040700 Accounting Unit Northwestern Lake Huron 04070001 Cataloging Unit St. Marys 04070002 Cataloging Unit Carp-Pine 04070003 Cataloging Unit Lone Lake-Ocqueoc 04070004 Cataloging Unit Cheboygan 04070005 Cataloging Unit Black 04070006 Cataloging Unit Thunder Bay 04070007 Cataloging Unit Au Sable 0408 Subregion Southwestern Lake Huron-Lake Huron 040801 Accounting Unit Southwestern Lake Huron 04080101 Cataloging Unit Au Gres-Rifle 04080102 Cataloging Unit Kawkawlin-Pine 04080103 Cataloging Unit Pigeon-Wiscoggin 04080104 Cataloging Unit Birch-Willow 040802 Accounting Unit Saginaw 04080201 Cataloging Unit Tittabawassee 04080202 Cataloging Unit Pine 04080203 Cataloging Unit Shiawassee 04080204 Cataloging Unit Flint 04080205 Cataloging Unit Cass 04080206 Cataloging Unit Saginaw 040803 Accounting Unit Lake Huron 04080300 Cataloging Unit Lake Huron 0409 Subregion St. Clair-Detroit 040900 Accounting Unit St. Clair-Detroit 04090001 Cataloging Unit St. Clair 04090002 Cataloging Unit Lake St. Clair 04090003 Cataloging Unit Clinton 04090004 Cataloging Unit Detroit 04090005 Cataloging Unit Huron 0410 Subregion Western Lake Erie 041000 Accounting Unit Western Lake Erie 04100001 Cataloging Unit Ottawa-Stony 04100002 Cataloging Unit Raisin 04100003 Cataloging Unit St. Joseph 04100004 Cataloging Unit St. Marys 04100005 Cataloging Unit Upper Maumee 04100006 Cataloging Unit Tiffin 04100007 Cataloging Unit Auglaize 04100008 Cataloging Unit Blanchard 04100009 Cataloging Unit Lower Maumee 04100010 Cataloging Unit Cedar-Portage 04100011 Cataloging Unit Sandusky 04100012 Cataloging Unit Huron-Vermilion 0411 Subregion Southern Lake Erie 041100 Accounting Unit Southern Lake Erie 04110001 Cataloging Unit Black-Rocky 04110002 Cataloging Unit Cuyahoga 04110003 Cataloging Unit Ashtabula-Chagrin 04110004 Cataloging Unit Grand 0412 Subregion Eastern Lake Erie-Lake Erie 041201 Accounting Unit Eastern Lake Erie 04120101 Cataloging Unit Chautauqua-Conneaut 04120102 Cataloging Unit Cattaraugus 04120103 Cataloging Unit Buffalo-Eighteenmile 04120104 Cataloging Unit Niagara 041202 Accounting Unit Lake Erie 04120200 Cataloging Unit Lake Erie 0413 Subregion Southwestern Lake Ontario 041300 Accounting Unit Southwestern Lake Ontario 04130001 Cataloging Unit Oak Orchard-Twelvemile 04130002 Cataloging Unit Upper Genesee 04130003 Cataloging Unit Lower Genesee 0414 Subregion Southeastern Lake Ontario 041401 Accounting Unit Southeastern Lake Ontario 04140101 Cataloging Unit Irondequoit-Ninemile 04140102 Cataloging Unit Salmon-Sandy 041402 Accounting Unit Oswego 04140201 Cataloging Unit Seneca 04140202 Cataloging Unit Oneida 04140203 Cataloging Unit Oswego 0415 Subregion Northeastern Lake Ontario-Lake Ontario-St. Lawrence 041501 Accounting Unit Northeastern Lake Ontario 04150101 Cataloging Unit Black 04150102 Cataloging Unit Chaumont-Perch 041502 Accounting Unit Lake Ontario 04150200 Cataloging Unit Lake Ontario 041503 Accounting Unit St. Lawrence 04150301 Cataloging Unit Upper St. Lawrence 04150302 Cataloging Unit Oswegatchie 04150303 Cataloging Unit Indian 04150304 Cataloging Unit Grass 04150305 Cataloging Unit Raquette 04150306 Cataloging Unit St. Regis 04150307 Cataloging Unit Salmon 04150308 Cataloging Unit Chateaugay-English 041504 Accounting Unit Lake Champlain-Richelieu River 04150401 Cataloging Unit Mettawee River 04150402 Cataloging Unit Otter Creek 04150403 Cataloging Unit Winooski River 04150404 Cataloging Unit Ausable River 04150405 Cataloging Unit Lamoille River 04150406 Cataloging Unit Saranac River 04150407 Cataloging Unit Missiquoi River 04150408 Cataloging Unit Lake Champlain 04150409 Cataloging Unit Richelieu River 041505 Accounting Unit St. Francois River 04150500 Cataloging Unit St. Francois River 05 Region Ohio Region 0501 Subregion Allegheny 050100 Accounting Unit Allegheny 05010001 Cataloging Unit Upper Allegheny 05010002 Cataloging Unit Conewango 05010003 Cataloging Unit Middle Allegheny-Tionesta 05010004 Cataloging Unit French 05010005 Cataloging Unit Clarion 05010006 Cataloging Unit Middle Allegheny-Redbank 05010007 Cataloging Unit Conemaugh 05010008 Cataloging Unit Kiskiminetas 05010009 Cataloging Unit Lower Allegheny 0502 Subregion Monongahela 050200 Accounting Unit Monongahela 05020001 Cataloging Unit Tygart Valley 05020002 Cataloging Unit West Fork 05020003 Cataloging Unit Upper Monongahela 05020004 Cataloging Unit Cheat 05020005 Cataloging Unit Lower Monongahela 05020006 Cataloging Unit Youghiogheny 0503 Subregion Upper Ohio 050301 Accounting Unit Upper Ohio-Beaver 05030101 Cataloging Unit Upper Ohio 05030102 Cataloging Unit Shenango 05030103 Cataloging Unit Mahoning 05030104 Cataloging Unit Beaver 05030105 Cataloging Unit Connoquenessing 05030106 Cataloging Unit Upper Ohio-Wheeling 050302 Accounting Unit Upper Ohio-Little Kanawha 05030201 Cataloging Unit Little Muskingum-Middle Island 05030202 Cataloging Unit Upper Ohio-Shade 05030203 Cataloging Unit Little Kanawha 05030204 Cataloging Unit Hocking 0504 Subregion Muskingum 050400 Accounting Unit Muskingum 05040001 Cataloging Unit Tuscarawas 05040002 Cataloging Unit Mohican 05040003 Cataloging Unit Walhonding 05040004 Cataloging Unit Muskingum 05040005 Cataloging Unit Wills 05040006 Cataloging Unit Licking 0505 Subregion Kanawha 050500 Accounting Unit Kanawha 05050001 Cataloging Unit Upper New 05050002 Cataloging Unit Middle New 05050003 Cataloging Unit Greenbrier 05050004 Cataloging Unit Lower New 05050005 Cataloging Unit Gauley 05050006 Cataloging Unit Upper Kanawha 05050007 Cataloging Unit Elk 05050008 Cataloging Unit Lower Kanawha 05050009 Cataloging Unit Coal 0506 Subregion Scioto 050600 Accounting Unit Scioto 05060001 Cataloging Unit Upper Scioto 05060002 Cataloging Unit Lower Scioto 05060003 Cataloging Unit Paint 0507 Subregion Big Sandy-Guyandotte 050701 Accounting Unit Guyandotte 05070101 Cataloging Unit Upper Guyandotte 05070102 Cataloging Unit Lower Guyandotte 050702 Accounting Unit Big Sandy 05070201 Cataloging Unit Tug 05070202 Cataloging Unit Upper Levisa 05070203 Cataloging Unit Lower Levisa 05070204 Cataloging Unit Big Sandy 0508 Subregion Great Miami 050800 Accounting Unit Great Miami 05080001 Cataloging Unit Upper Great Miami, Indiana, Ohio 05080002 Cataloging Unit Lower Great Miami, Indiana, Ohio 05080003 Cataloging Unit Whitewater 0509 Subregion Middle Ohio 050901 Accounting Unit Middle Ohio-Raccoon 05090101 Cataloging Unit Raccoon-Symmes 05090102 Cataloging Unit Twelvepole 05090103 Cataloging Unit Little Scioto-Tygarts 05090104 Cataloging Unit Little Sandy 050902 Accounting Unit Middle Ohio-Little Miami 05090201 Cataloging Unit Ohio Brush-Whiteoak 05090202 Cataloging Unit Little Miami 05090203 Cataloging Unit Middle Ohio-Laughery 0510 Subregion Kentucky-Licking 051001 Accounting Unit Licking 05100101 Cataloging Unit Licking 05100102 Cataloging Unit South Fork Licking 051002 Accounting Unit Kentucky 05100201 Cataloging Unit North Fork Kentucky 05100202 Cataloging Unit Middle Fork Kentucky 05100203 Cataloging Unit South Fork Kentucky 05100204 Cataloging Unit Upper Kentucky 05100205 Cataloging Unit Lower Kentucky 0511 Subregion Green 051100 Accounting Unit Green 05110001 Cataloging Unit Upper Green 05110002 Cataloging Unit Barren 05110003 Cataloging Unit Middle Green 05110004 Cataloging Unit Rough 05110005 Cataloging Unit Lower Green 05110006 Cataloging Unit Pond 0512 Subregion Wabash 051201 Accounting Unit Wabash 05120101 Cataloging Unit Upper Wabash 05120102 Cataloging Unit Salamonie 05120103 Cataloging Unit Mississinewa 05120104 Cataloging Unit Eel 05120105 Cataloging Unit Middle Wabash-Deer 05120106 Cataloging Unit Tippecanoe 05120107 Cataloging Unit Wildcat 05120108 Cataloging Unit Middle Wabash-Little Vermilion 05120109 Cataloging Unit Vermilion 05120110 Cataloging Unit Sugar 05120111 Cataloging Unit Middle Wabash-Busseron 05120112 Cataloging Unit Embarras 05120113 Cataloging Unit Lower Wabash 05120114 Cataloging Unit Little Wabash 05120115 Cataloging Unit Skillet 051202 Accounting Unit Patoka-White 05120201 Cataloging Unit Upper White 05120202 Cataloging Unit Lower White 05120203 Cataloging Unit Eel 05120204 Cataloging Unit Driftwood 05120205 Cataloging Unit Flatrock-Haw 05120206 Cataloging Unit Upper East Fork White 05120207 Cataloging Unit Muscatatuck 05120208 Cataloging Unit Lower East Fork White 05120209 Cataloging Unit Patoka 0513 Subregion Cumberland 051301 Accounting Unit Upper Cumberland 05130101 Cataloging Unit Upper Cumberland 05130102 Cataloging Unit Rockcastle 05130103 Cataloging Unit Upper Cumberland-Lake Cumberland 05130104 Cataloging Unit South Fork Cumberland 05130105 Cataloging Unit Obey 05130106 Cataloging Unit Upper Cumberland-Cordell Hull Reservoir 05130107 Cataloging Unit Collins 05130108 Cataloging Unit Caney 051302 Accounting Unit Lower Cumberland 05130201 Cataloging Unit Lower Cumberland-Old Hickory Lake 05130202 Cataloging Unit Lower Cumberland-Sycamore 05130203 Cataloging Unit Stones 05130204 Cataloging Unit Harpeth 05130205 Cataloging Unit Lower Cumberland 05130206 Cataloging Unit Red 0514 Subregion Lower Ohio 051401 Accounting Unit Lower Ohio-Salt 05140101 Cataloging Unit Silver-Little Kentucky 05140102 Cataloging Unit Salt 05140103 Cataloging Unit Rolling Fork 05140104 Cataloging Unit Blue-Sinking 051402 Accounting Unit Lower Ohio 05140201 Cataloging Unit Lower Ohio-Little Pigeon 05140202 Cataloging Unit Highland-Pigeon 05140203 Cataloging Unit Lower Ohio-Bay 05140204 Cataloging Unit Saline 05140205 Cataloging Unit Tradewater 05140206 Cataloging Unit Lower Ohio 06 Region Tennessee Region 0601 Subregion Upper Tennessee 060101 Accounting Unit French Broad-Holston 06010101 Cataloging Unit North Fork Holston 06010102 Cataloging Unit South Fork Holston 06010103 Cataloging Unit Watauga, North Carolina, Tennessee 06010104 Cataloging Unit Holston 06010105 Cataloging Unit Upper French Broad 06010106 Cataloging Unit Pigeon 06010107 Cataloging Unit Lower French Broad 06010108 Cataloging Unit Nolichucky 060102 Accounting Unit Upper Tennessee 06010201 Cataloging Unit Watts Bar Lake 06010202 Cataloging Unit Upper Little Tennessee 06010203 Cataloging Unit Tuckasegee 06010204 Cataloging Unit Lower Little Tennessee 06010205 Cataloging Unit Upper Clinch, Tennessee, Virginia 06010206 Cataloging Unit Powell 06010207 Cataloging Unit Lower Clinch 06010208 Cataloging Unit Emory 0602 Subregion Middle Tennessee-Hiwassee 060200 Accounting Unit Middle Tennessee-Hiwassee 06020001 Cataloging Unit Middle Tennessee-Chickamauga 06020002 Cataloging Unit Hiwassee 06020003 Cataloging Unit Ocoee 06020004 Cataloging Unit Sequatchie 0603 Subregion Middle Tennessee-Elk 060300 Accounting Unit Middle Tennessee-Elk 06030001 Cataloging Unit Guntersville Lake 06030002 Cataloging Unit Wheeler Lake 06030003 Cataloging Unit Upper Elk 06030004 Cataloging Unit Lower Elk 06030005 Cataloging Unit Pickwick Lake 06030006 Cataloging Unit Bear 0604 Subregion Lower Tennessee 060400 Accounting Unit Lower Tennessee 06040001 Cataloging Unit Lower Tennessee-Beech 06040002 Cataloging Unit Upper Duck 06040003 Cataloging Unit Lower Duck 06040004 Cataloging Unit Buffalo 06040005 Cataloging Unit Kentucky Lake 06040006 Cataloging Unit Lower Tennessee 07 Region Upper Mississippi Region 0701 Subregion Mississippi Headwaters 070101 Accounting Unit Mississippi Headwaters 07010101 Cataloging Unit Mississippi Headwaters 07010102 Cataloging Unit Leech Lake 07010103 Cataloging Unit Prairie-Willow 07010104 Cataloging Unit Elk-Nokasippi 07010105 Cataloging Unit Pine 07010106 Cataloging Unit Crow Wing 07010107 Cataloging Unit Redeye 07010108 Cataloging Unit Long Prairie 070102 Accounting Unit Upper Mississippi-Crow-Rum 07010201 Cataloging Unit Platte-Spunk 07010202 Cataloging Unit Sauk 07010203 Cataloging Unit Clearwater-Elk 07010204 Cataloging Unit Crow 07010205 Cataloging Unit South Fork Crow 07010206 Cataloging Unit Twin Cities 07010207 Cataloging Unit Rum 0702 Subregion Minnesota 070200 Accounting Unit Minnesota 07020001 Cataloging Unit Upper Minnesota 07020002 Cataloging Unit Pomme De Terre 07020003 Cataloging Unit Lac Qui Parle 07020004 Cataloging Unit Hawk-Yellow Medicine 07020005 Cataloging Unit Chippewa 07020006 Cataloging Unit Redwood 07020007 Cataloging Unit Middle Minnesota 07020008 Cataloging Unit Cottonwood 07020009 Cataloging Unit Blue Earth 07020010 Cataloging Unit Watonwan 07020011 Cataloging Unit Le Sueur 07020012 Cataloging Unit Lower Minnesota 0703 Subregion St. Croix 070300 Accounting Unit St. Croix 07030001 Cataloging Unit Upper St. Croix 07030002 Cataloging Unit Namekagon 07030003 Cataloging Unit Kettle 07030004 Cataloging Unit Snake 07030005 Cataloging Unit Lower St. Croix 0704 Subregion Upper Mississippi-Black-Root 070400 Accounting Unit Upper Mississippi-Black-Root 07040001 Cataloging Unit Rush-Vermillion 07040002 Cataloging Unit Cannon 07040003 Cataloging Unit Buffalo-Whitewater 07040004 Cataloging Unit Zumbro 07040005 Cataloging Unit Trempealeau 07040006 Cataloging Unit La Crosse-Pine 07040007 Cataloging Unit Black 07040008 Cataloging Unit Root 0705 Subregion Chippewa 070500 Accounting Unit Chippewa 07050001 Cataloging Unit Upper Chippewa 07050002 Cataloging Unit Flambeau 07050003 Cataloging Unit South Fork Flambeau 07050004 Cataloging Unit Jump 07050005 Cataloging Unit Lower Chippewa 07050006 Cataloging Unit Eau Claire 07050007 Cataloging Unit Red Cedar 0706 Subregion Upper Mississippi-Maquoketa-Plum 070600 Accounting Unit Upper Mississippi-Maquoketa-Plum 07060001 Cataloging Unit Coon-Yellow 07060002 Cataloging Unit Upper Iowa 07060003 Cataloging Unit Grant-Little Maquoketa 07060004 Cataloging Unit Turkey 07060005 Cataloging Unit Apple-Plum 07060006 Cataloging Unit Maquoketa 0707 Subregion Wisconsin 070700 Accounting Unit Wisconsin 07070001 Cataloging Unit Upper Wisconsin 07070002 Cataloging Unit Lake Dubay 07070003 Cataloging Unit Castle Rock 07070004 Cataloging Unit Baraboo 07070005 Cataloging Unit Lower Wisconsin 07070006 Cataloging Unit Kickapoo 0708 Subregion Upper Mississippi-Iowa-Skunk-Wapsipinicon 070801 Accounting Unit Upper Mississippi-Skunk-Wapsipinicon 07080101 Cataloging Unit Copperas-Duck 07080102 Cataloging Unit Upper Wapsipinicon 07080103 Cataloging Unit Lower Wapsipinicon 07080104 Cataloging Unit Flint-Henderson 07080105 Cataloging Unit South Skunk 07080106 Cataloging Unit North Skunk 07080107 Cataloging Unit Skunk 070802 Accounting Unit Iowa 07080201 Cataloging Unit Upper Cedar 07080202 Cataloging Unit Shell Rock 07080203 Cataloging Unit Winnebago 07080204 Cataloging Unit West Fork Cedar 07080205 Cataloging Unit Middle Cedar 07080206 Cataloging Unit Lower Cedar 07080207 Cataloging Unit Upper Iowa 07080208 Cataloging Unit Middle Iowa 07080209 Cataloging Unit Lower Iowa 0709 Subregion Rock 070900 Accounting Unit Rock 07090001 Cataloging Unit Upper Rock 07090002 Cataloging Unit Middle Rock 07090003 Cataloging Unit Pecatonica 07090004 Cataloging Unit Sugar 07090005 Cataloging Unit Lower Rock 07090006 Cataloging Unit Kishwaukee 07090007 Cataloging Unit Green 0710 Subregion Des Moines 071000 Accounting Unit Des Moines 07100001 Cataloging Unit Des Moines Headwaters 07100002 Cataloging Unit Upper Des Moines 07100003 Cataloging Unit East Fork Des Moines 07100004 Cataloging Unit Middle Des Moines 07100005 Cataloging Unit Boone 07100006 Cataloging Unit North Raccoon 07100007 Cataloging Unit South Raccoon 07100008 Cataloging Unit Lake Red Rock 07100009 Cataloging Unit Lower Des Moines 0711 Subregion Upper Mississippi-Salt 071100 Accounting Unit Upper Mississippi-Salt 07110001 Cataloging Unit Bear-Wyaconda 07110002 Cataloging Unit North Fabius 07110003 Cataloging Unit South Fabius 07110004 Cataloging Unit The Sny 07110005 Cataloging Unit North Fork Salt 07110006 Cataloging Unit South Fork Salt 07110007 Cataloging Unit Salt 07110008 Cataloging Unit Cuivre 07110009 Cataloging Unit Peruque-Piasa 0712 Subregion Upper Illinois 0712 Subregion UpperIllinois 071200 Accounting Unit Upper Illinois 07120001 Cataloging Unit Kankakee 07120002 Cataloging Unit Iroquois 07120003 Cataloging Unit Chicago 07120004 Cataloging Unit Des Plaines 07120005 Cataloging Unit Upper Illinois 07120006 Cataloging Unit Upper Fox 07120007 Cataloging Unit Lower Fox 0713 Subregion Lower Illinois 071300 Accounting Unit Lower Illinois 07130001 Cataloging Unit Lower Illinois-Senachwine Lake 07130002 Cataloging Unit Vermilion 07130003 Cataloging Unit Lower Illinois-Lake Chautauqua 07130004 Cataloging Unit Mackinaw 07130005 Cataloging Unit Spoon 07130006 Cataloging Unit Upper Sangamon 07130007 Cataloging Unit South Fork Sangamon 07130008 Cataloging Unit Lower Sangamon 07130009 Cataloging Unit Salt 07130010 Cataloging Unit La Moine 07130011 Cataloging Unit Lower Illinois 07130012 Cataloging Unit Macoupin 0714 Subregion Upper Mississippi-Kaskaskia-Meramec 071401 Accounting Unit Upper Mississippi-Meramec 07140101 Cataloging Unit Cahokia-Joachim 07140102 Cataloging Unit Meramec 07140103 Cataloging Unit Bourbeuse 07140104 Cataloging Unit Big 07140105 Cataloging Unit Upper Mississippi-Cape Girardeau 07140106 Cataloging Unit Big Muddy 07140107 Cataloging Unit Whitewater 07140108 Cataloging Unit Cache 071402 Accounting Unit Kaskaskia 07140201 Cataloging Unit Upper Kaskaskia 07140202 Cataloging Unit Middle Kaskaskia 07140203 Cataloging Unit Shoal 07140204 Cataloging Unit Lower Kaskaskia 08 Region Lower Mississippi Region 0801 Subregion Lower Mississippi-Hatchie 080101 Accounting Unit Lower Mississippi-Memphis 08010100 Cataloging Unit Lower Mississippi-Memphis 080102 Accounting Unit Hatchie-Obion 08010201 Cataloging Unit Bayou De Chien-Mayfield 08010202 Cataloging Unit Obion 08010203 Cataloging Unit South Fork Obion 08010204 Cataloging Unit North Fork Forked Deer 08010205 Cataloging Unit South Fork Forked Deer 08010206 Cataloging Unit Forked Deer 08010207 Cataloging Unit Upper Hatchie 08010208 Cataloging Unit Lower Hatchie 08010209 Cataloging Unit Loosahatchie 08010210 Cataloging Unit Wolf 08010211 Cataloging Unit Horn Lake-Nonconnah 0802 Subregion Lower Mississippi-St. Francis 080201 Accounting Unit Lower Mississippi 080201 Accounting Unit Lower Mississippi-Helena 08020100 Cataloging Unit Lower Mississippi-Helena 080202 Accounting Unit St. Francis 08020201 Cataloging Unit New Madrid-St. Johns 08020202 Cataloging Unit Upper St. Francis 08020203 Cataloging Unit Lower St. Francis 08020204 Cataloging Unit Little River Ditches 08020205 Cataloging Unit L'Anguille 080203 Accounting Unit Lower White 08020301 Cataloging Unit Lower White-Bayou Des Arc 08020302 Cataloging Unit Cache 08020303 Cataloging Unit Lower White 08020304 Cataloging Unit Big 080204 Accounting Unit Lower Arkansas 08020401 Cataloging Unit Lower Arkansas 08020402 Cataloging Unit Bayou Meto 0803 Subregion Lower Mississippi-Yazoo 080301 Accounting Unit Lower Mississippi-Greenville 08030100 Cataloging Unit Lower Mississippi-Greenville 080302 Accounting Unit Yazoo 08030201 Cataloging Unit Little Tallahatchie 08030202 Cataloging Unit Tallahatchie 08030203 Cataloging Unit Yocona 08030204 Cataloging Unit Coldwater 08030205 Cataloging Unit Yalobusha 08030206 Cataloging Unit Upper Yazoo 08030207 Cataloging Unit Big Sunflower 08030208 Cataloging Unit Lower Yazoo 08030209 Cataloging Unit Deer-Steele 0804 Subregion Lower Red-Ouachita 080401 Accounting Unit Upper Ouachita 08040101 Cataloging Unit Ouachita Headwaters 08040102 Cataloging Unit Upper Ouachita 08040103 Cataloging Unit Little Missouri 080402 Accounting Unit Lower Ouachita 08040201 Cataloging Unit Lower Ouachita-Smackover 08040202 Cataloging Unit Lower Ouachita-Bayou De Loutre 08040203 Cataloging Unit Upper Saline 08040204 Cataloging Unit Lower Saline 08040205 Cataloging Unit Bayou Bartholomew 08040206 Cataloging Unit Bayou D'Arbonne 08040207 Cataloging Unit Lower Ouachita 080403 Accounting Unit Lower Red 08040301 Cataloging Unit Lower Red 08040302 Cataloging Unit Castor 08040303 Cataloging Unit Dugdemona 08040304 Cataloging Unit Little 08040305 Cataloging Unit Black 08040306 Cataloging Unit Bayou Cocodrie 0805 Subregion Boeuf-Tensas 080500 Accounting Unit Boeuf-Tensas 08050001 Cataloging Unit Boeuf 08050002 Cataloging Unit Bayou Macon 08050003 Cataloging Unit Tensas 0806 Subregion Lower Mississippi-Big Black 080601 Accounting Unit Lower Mississippi-Natchez 08060100 Cataloging Unit Lower Mississippi-Natchez 080602 Accounting Unit Big Black-Homochitto 08060201 Cataloging Unit Upper Big Black 08060202 Cataloging Unit Lower Big Black 08060203 Cataloging Unit Bayou Pierre 08060204 Cataloging Unit Coles Creek 08060205 Cataloging Unit Homochitto 08060206 Cataloging Unit Buffalo 0807 Subregion Lower Mississippi-Lake Maurepas 080701 Accounting Unit Lower Mississippi-Baton Rouge 08070100 Cataloging Unit Lower Mississippi-Baton Rouge 080702 Accounting Unit Lake Maurepas 08070201 Cataloging Unit Bayou Sara-Thompson 08070202 Cataloging Unit Amite 08070203 Cataloging Unit Tickfaw 08070204 Cataloging Unit Lake Maurepas 08070205 Cataloging Unit Tangipahoa 080703 Accounting Unit Lower Grand 08070300 Cataloging Unit Lower Grand 0808 Subregion Louisiana Coastal 080801 Accounting Unit Atchafalaya-Vermilion 08080101 Cataloging Unit Atchafalaya 08080102 Cataloging Unit Bayou Teche 08080103 Cataloging Unit Vermilion 080802 Accounting Unit Calcasieu-Mermentau 08080201 Cataloging Unit Mermentau Headwaters 08080202 Cataloging Unit Mermentau 08080203 Cataloging Unit Upper Calcasieu 08080204 Cataloging Unit Whisky Chitto 08080205 Cataloging Unit West Fork Calcasieu 08080206 Cataloging Unit Lower Calcasieu 0809 Subregion Lower Mississippi 080901 Accounting Unit Lower Mississippi-New Orleans 08090100 Cataloging Unit Lower Mississippi-New Orleans 080902 Accounting Unit Lake Pontchartrain 08090201 Cataloging Unit Liberty Bayou-Tchefuncta 08090202 Cataloging Unit Lake Pontchartrain 08090203 Cataloging Unit Eastern Louisiana Coastal 080903 Accounting Unit Central Louisiana Coastal 08090301 Cataloging Unit East Central Louisiana Coastal 08090302 Cataloging Unit West Central Louisiana Coastal 09 Region Souris-Red-Rainy Region 0901 Subregion Souris 090100 Accounting Unit Souris 09010001 Cataloging Unit Upper Souris 09010002 Cataloging Unit Des Lacs 09010003 Cataloging Unit Lower Souris 09010004 Cataloging Unit Willow 09010005 Cataloging Unit Deep 09010006 Cataloging Unit Long Creek 09010007 Cataloging Unit Headwaters Souris River 09010008 Cataloging Unit Moose Mountain Creek-Souris River 0902 Subregion Red 090201 Accounting Unit Upper Red 09020101 Cataloging Unit Bois De Sioux 09020102 Cataloging Unit Mustinka 09020103 Cataloging Unit Otter Tail 09020104 Cataloging Unit Upper Red 09020105 Cataloging Unit Western Wild Rice 09020106 Cataloging Unit Buffalo 09020107 Cataloging Unit Elm-Marsh 09020108 Cataloging Unit Eastern Wild Rice 09020109 Cataloging Unit Goose 090202 Accounting Unit Devils Lake-Sheyenne 09020201 Cataloging Unit Devils Lake 09020202 Cataloging Unit Upper Sheyenne 09020203 Cataloging Unit Middle Sheyenne 09020204 Cataloging Unit Lower Sheyenne 09020205 Cataloging Unit Maple 090203 Accounting Unit Lower Red 09020301 Cataloging Unit Sandhill-Wilson 09020302 Cataloging Unit Red Lakes 09020303 Cataloging Unit Red Lake 09020304 Cataloging Unit Thief 09020305 Cataloging Unit Clearwater 09020306 Cataloging Unit Grand Marais-Red 09020307 Cataloging Unit Turtle 09020308 Cataloging Unit Forest 09020309 Cataloging Unit Snake 09020310 Cataloging Unit Park 09020311 Cataloging Unit Middle Red 09020312 Cataloging Unit Two Rivers 09020313 Cataloging Unit Pembina 09020314 Cataloging Unit Roseau 09020315 Cataloging Unit Upper Pembina River 09020316 Cataloging Unit Lower Pembina River 0903 Subregion Rainy 090300 Accounting Unit Rainy 09030001 Cataloging Unit Rainy Headwaters 09030002 Cataloging Unit Vermilion 09030003 Cataloging Unit Rainy Lake 09030004 Cataloging Unit Upper Rainy 09030005 Cataloging Unit Little Fork 09030006 Cataloging Unit Big Fork 09030007 Cataloging Unit Rapid 09030008 Cataloging Unit Lower Rainy 09030009 Cataloging Unit Lake of the Woods 0904 Subregion Saskatchewan River 090400 Accounting Unit Upper South Saskatchewan River 09040001 Cataloging Unit St. Marys 09040002 Cataloging Unit Belly 10 Region Missouri Region 1001 Subregion The Saskatchewan River Basin 100100 Accounting Unit Saskatchewan 10010001 Cataloging Unit Belly 10010002 Cataloging Unit St. Mary 1002 Subregion Missouri Headwaters 100200 Accounting Unit Missouri Headwaters 10020001 Cataloging Unit Red Rock 10020002 Cataloging Unit Beaverhead 10020003 Cataloging Unit Ruby 10020004 Cataloging Unit Big Hole 10020005 Cataloging Unit Jefferson 10020006 Cataloging Unit Boulder 10020007 Cataloging Unit Madison 10020008 Cataloging Unit Gallatin 1003 Subregion Missouri-Marias 100301 Accounting Unit Upper Missouri 10030101 Cataloging Unit Upper Missouri 10030102 Cataloging Unit Upper Missouri-Dearborn 10030103 Cataloging Unit Smith 10030104 Cataloging Unit Sun 10030105 Cataloging Unit Belt 100302 Accounting Unit Marias 10030201 Cataloging Unit Two Medicine 10030202 Cataloging Unit Cut Bank 10030203 Cataloging Unit Marias 10030204 Cataloging Unit Willow 10030205 Cataloging Unit Teton 1004 Subregion Missouri-Musselshell 100401 Accounting Unit Fort Peck Lake 10040101 Cataloging Unit Bullwhacker-Dog 10040102 Cataloging Unit Arrow 10040103 Cataloging Unit Judith 10040104 Cataloging Unit Fort Peck Reservoir 10040105 Cataloging Unit Big Dry 10040106 Cataloging Unit Little Dry 100402 Accounting Unit Musselshell 10040201 Cataloging Unit Upper Musselshell 10040202 Cataloging Unit Middle Musselshell 10040203 Cataloging Unit Flatwillow 10040204 Cataloging Unit Box Elder 10040205 Cataloging Unit Lower Musselshell 1005 Subregion Milk 100500 Accounting Unit Milk 10050001 Cataloging Unit Milk Headwaters 10050002 Cataloging Unit Upper Milk 10050003 Cataloging Unit Wild Horse Lake 10050004 Cataloging Unit Middle Milk 10050005 Cataloging Unit Big Sandy 10050006 Cataloging Unit Sage 10050007 Cataloging Unit Lodge 10050008 Cataloging Unit Battle 10050009 Cataloging Unit Peoples 10050010 Cataloging Unit Cottonwood 10050011 Cataloging Unit Whitewater 10050012 Cataloging Unit Lower Milk 10050013 Cataloging Unit Frenchman 10050014 Cataloging Unit Beaver 10050015 Cataloging Unit Rock 10050016 Cataloging Unit Porcupine 1006 Subregion Missouri-Poplar 100600 Accounting Unit Missouri-Poplar 10060001 Cataloging Unit Prarie Elk-Wolf 10060002 Cataloging Unit Redwater 10060003 Cataloging Unit Poplar 10060004 Cataloging Unit West Fork Poplar 10060005 Cataloging Unit Charlie-Little Muddy 10060006 Cataloging Unit Big Muddy 10060007 Cataloging Unit Brush Lake Closed Basin 1007 Subregion Upper Yellowstone 100700 Accounting Unit Upper Yellowstone 10070001 Cataloging Unit Yellowstone Headwaters 10070002 Cataloging Unit Upper Yellowstone 10070003 Cataloging Unit Shields 10070004 Cataloging Unit Upper Yellowstone-Lake Basin 10070005 Cataloging Unit Stillwater 10070006 Cataloging Unit Clarks Fork Yellowstone 10070007 Cataloging Unit Upper Yellowstone-Pompeys Pillar 10070008 Cataloging Unit Pryor 1008 Subregion Big Horn 100800 Accounting Unit Big Horn 10080001 Cataloging Unit Upper Wind 10080002 Cataloging Unit Little Wind 10080003 Cataloging Unit Popo Agie 10080004 Cataloging Unit Muskrat 10080005 Cataloging Unit Lower Wind 10080006 Cataloging Unit Badwater 10080007 Cataloging Unit Upper Bighorn 10080008 Cataloging Unit Nowood 10080009 Cataloging Unit Greybull 10080010 Cataloging Unit Big Horn Lake 10080011 Cataloging Unit Dry 10080012 Cataloging Unit North Fork Shoshone 10080013 Cataloging Unit South Fork Shoshone 10080014 Cataloging Unit Shoshone 10080015 Cataloging Unit Lower Bighorn 10080016 Cataloging Unit Little Bighorn 1009 Subregion Powder-Tongue 100901 Accounting Unit Tongue 10090101 Cataloging Unit Upper Tongue 10090102 Cataloging Unit Lower Tongue 100902 Accounting Unit Powder 10090201 Cataloging Unit Middle Fork Powder 10090202 Cataloging Unit Upper Powder 10090203 Cataloging Unit South Fork Powder 10090204 Cataloging Unit Salt 10090205 Cataloging Unit Crazy Woman 10090206 Cataloging Unit Clear 10090207 Cataloging Unit Middle Powder 10090208 Cataloging Unit Little Powder 10090209 Cataloging Unit Lower Powder 10090210 Cataloging Unit Mizpah 1010 Subregion Lower Yellowstone 101000 Accounting Unit Lower Yellowstone 10100001 Cataloging Unit Lower Yellowstone-Sunday 10100002 Cataloging Unit Big Porcupine 10100003 Cataloging Unit Rosebud 10100004 Cataloging Unit Lower Yellowstone 10100005 Cataloging Unit O'Fallon 1011 Subregion Missouri-Little Missouri 101101 Accounting Unit Lake Sakakawea 10110101 Cataloging Unit Lake Sakakawea 10110102 Cataloging Unit Little Muddy 101102 Accounting Unit Little Missouri 10110201 Cataloging Unit Upper Little Missouri 10110202 Cataloging Unit Boxelder 10110203 Cataloging Unit Middle Little Missouri 10110204 Cataloging Unit Beaver 10110205 Cataloging Unit Lower Little Missouri 1012 Subregion Cheyenne 101201 Accounting Unit Cheyenne 10120101 Cataloging Unit Antelope 10120102 Cataloging Unit Dry Fork Cheyenne 10120103 Cataloging Unit Upper Cheyenne 10120104 Cataloging Unit Lance 10120105 Cataloging Unit Lightning 10120106 Cataloging Unit Angostura Reservoir 10120107 Cataloging Unit Beaver 10120108 Cataloging Unit Hat 10120109 Cataloging Unit Middle Cheyenne-Spring 10120110 Cataloging Unit Rapid 10120111 Cataloging Unit Middle Cheyenne-Elk 10120112 Cataloging Unit Lower Cheyenne 10120113 Cataloging Unit Cherry 101202 Accounting Unit Belle Fourche 10120201 Cataloging Unit Upper Belle Fourche 10120202 Cataloging Unit Lower Belle Fourche 10120203 Cataloging Unit Redwater 1013 Subregion Missouri-Oahe 101301 Accounting Unit Lake Oahe 10130101 Cataloging Unit Painted Woods-Square Butte 10130102 Cataloging Unit Upper Lake Oahe 10130103 Cataloging Unit Apple 10130104 Cataloging Unit Beaver 10130105 Cataloging Unit Lower Lake Oahe 10130106 Cataloging Unit West Missouri Coteau 101302 Accounting Unit Cannonball-Heart-Knife 10130201 Cataloging Unit Knife 10130202 Cataloging Unit Upper Heart 10130203 Cataloging Unit Lower Heart 10130204 Cataloging Unit Upper Cannonball 10130205 Cataloging Unit Cedar 10130206 Cataloging Unit Lower Cannonball 101303 Accounting Unit Grand-Moreau 10130301 Cataloging Unit North Fork Grand 10130302 Cataloging Unit South Fork Grand 10130303 Cataloging Unit Grand 10130304 Cataloging Unit South Fork Moreau 10130305 Cataloging Unit Upper Moreau 10130306 Cataloging Unit Lower Moreau 1014 Subregion Missouri-White 101401 Accounting Unit Fort Randall Reservoir 10140101 Cataloging Unit Fort Randall Reservoir 10140102 Cataloging Unit Bad 10140103 Cataloging Unit Medicine Knoll 10140104 Cataloging Unit Medicine 10140105 Cataloging Unit Crow 101402 Accounting Unit White 10140201 Cataloging Unit Upper White 10140202 Cataloging Unit Middle White 10140203 Cataloging Unit Little White 10140204 Cataloging Unit Lower White 1015 Subregion Niobrara 101500 Accounting Unit Niobrara 10150001 Cataloging Unit Ponca 10150002 Cataloging Unit Niobrara Headwaters 10150003 Cataloging Unit Upper Niobrara 10150004 Cataloging Unit Middle Niobrara 10150005 Cataloging Unit Snake 10150006 Cataloging Unit Keya Paha 10150007 Cataloging Unit Lower Niobrara 1016 Subregion James 101600 Accounting Unit James 10160001 Cataloging Unit James Headwaters 10160002 Cataloging Unit Pipestem 10160003 Cataloging Unit Upper James 10160004 Cataloging Unit Elm 10160005 Cataloging Unit Mud 10160006 Cataloging Unit Middle James 10160007 Cataloging Unit North Fork Snake 10160008 Cataloging Unit Snake 10160009 Cataloging Unit Turtle 10160010 Cataloging Unit North Big Sioux Coteau 10160011 Cataloging Unit Lower James 1017 Subregion Missouri-Big Sioux 101701 Accounting Unit Lewis and Clark Lake 10170101 Cataloging Unit Lewis and Clark Lake 10170102 Cataloging Unit Vermillion 10170103 Cataloging Unit Lake Thompson 101702 Accounting Unit Big Sioux 10170201 Cataloging Unit Upper Big Sioux 10170202 Cataloging Unit Middle Big Sioux 10170203 Cataloging Unit Lower Big Sioux 10170204 Cataloging Unit Rock 1018 Subregion North Platte 101800 Accounting Unit North Platte 10180001 Cataloging Unit North Platte Headwaters 10180002 Cataloging Unit Upper North Platte 10180003 Cataloging Unit Pathfinder-Seminoe Reservoirs 10180004 Cataloging Unit Medicine Bow 10180005 Cataloging Unit Little Medicine Bow 10180006 Cataloging Unit Sweetwater 10180007 Cataloging Unit Middle North Platte-Casper 10180008 Cataloging Unit Glendo Reservoir 10180009 Cataloging Unit Middle North Platte-Scotts Bluff 10180010 Cataloging Unit Upper Laramie 10180011 Cataloging Unit Lower Laramie 10180012 Cataloging Unit Horse 10180013 Cataloging Unit Pumpkin 10180014 Cataloging Unit Lower North Platte 1019 Subregion South Platte 101900 Accounting Unit South Platte 10190001 Cataloging Unit South Platte Headwaters 10190002 Cataloging Unit Upper South Platte 10190003 Cataloging Unit Middle South Platte-Cherry Creek 10190004 Cataloging Unit Clear 10190005 Cataloging Unit St. Vrain 10190006 Cataloging Unit Big Thompson 10190007 Cataloging Unit Cache La Poudre 10190008 Cataloging Unit Lone Tree-Owl 10190009 Cataloging Unit Crow 10190010 Cataloging Unit Kiowa 10190011 Cataloging Unit Bijou 10190012 Cataloging Unit Middle South Platte-Sterling 10190013 Cataloging Unit Beaver 10190014 Cataloging Unit Pawnee 10190015 Cataloging Unit Upper Lodgepole 10190016 Cataloging Unit Lower Lodgepole 10190017 Cataloging Unit Sidney Draw 10190018 Cataloging Unit Lower South Platte 1020 Subregion Platte 102001 Accounting Unit Middle Platte 10200101 Cataloging Unit Middle Platte-Buffalo 10200102 Cataloging Unit Wood 10200103 Cataloging Unit Middle Platte-Prairie 102002 Accounting Unit Lower Platte 10200201 Cataloging Unit Lower Platte-Shell 10200202 Cataloging Unit Lower Platte 10200203 Cataloging Unit Salt 1021 Subregion Loup 102100 Accounting Unit Loup 10210001 Cataloging Unit Upper Middle Loup 10210002 Cataloging Unit Dismal 10210003 Cataloging Unit Lower Middle Loup 10210004 Cataloging Unit South Loup 10210005 Cataloging Unit Mud 10210006 Cataloging Unit Upper North Loup 10210007 Cataloging Unit Lower North Loup 10210008 Cataloging Unit Calamus 10210009 Cataloging Unit Loup 10210010 Cataloging Unit Cedar 1022 Subregion Elkhorn 102200 Accounting Unit Elkhorn 10220001 Cataloging Unit Upper Elkhorn 10220002 Cataloging Unit North Fork Elkhorn 10220003 Cataloging Unit Lower Elkhorn 10220004 Cataloging Unit Logan 1023 Subregion Missouri-Little Sioux 102300 Accounting Unit Missouri-Little Sioux 10230001 Cataloging Unit Blackbird-Soldier 10230002 Cataloging Unit Floyd 10230003 Cataloging Unit Little Sioux 10230004 Cataloging Unit Monona-Harrison Ditch 10230005 Cataloging Unit Maple 10230006 Cataloging Unit Big Papillion-Mosquito 10230007 Cataloging Unit Boyer 1024 Subregion Missouri-Nishnabotna 102400 Accounting Unit Missouri-Nishnabotna 10240001 Cataloging Unit Keg-Weeping Water 10240002 Cataloging Unit West Nishnabotna 10240003 Cataloging Unit East Nishnabotna 10240004 Cataloging Unit Nishnabotna 10240005 Cataloging Unit Tarkio-Wolf 10240006 Cataloging Unit Little Nemaha 10240007 Cataloging Unit South Fork Big Nemaha 10240008 Cataloging Unit Big Nemaha 10240009 Cataloging Unit West Nodaway 10240010 Cataloging Unit Nodaway 10240011 Cataloging Unit Independence-Sugar 10240012 Cataloging Unit Platte 10240013 Cataloging Unit One Hundred and Two 1025 Subregion Republican 102500 Accounting Unit Republican 10250001 Cataloging Unit Arikaree 10250002 Cataloging Unit North Fork Republican 10250003 Cataloging Unit South Fork Republican 10250004 Cataloging Unit Upper Republican 10250005 Cataloging Unit Frenchman 10250006 Cataloging Unit Stinking Water 10250007 Cataloging Unit Red Willow 10250008 Cataloging Unit Medicine 10250009 Cataloging Unit Harlan County Reservoir 10250010 Cataloging Unit Upper Sappa 10250011 Cataloging Unit Lower Sappa 10250012 Cataloging Unit South Fork Beaver 10250013 Cataloging Unit Little Beaver 10250014 Cataloging Unit Beaver 10250015 Cataloging Unit Prairie Dog 10250016 Cataloging Unit Middle Republican 10250017 Cataloging Unit Lower Republican 1026 Subregion Smoky Hill 102600 Accounting Unit Smoky Hill 10260001 Cataloging Unit Smoky Hill Headwaters 10260002 Cataloging Unit North Fork Smoky Hill 10260003 Cataloging Unit Upper Smoky Hill 10260004 Cataloging Unit Ladder 10260005 Cataloging Unit Hackberry 10260006 Cataloging Unit Middle Smoky Hill 10260007 Cataloging Unit Big 10260008 Cataloging Unit Lower Smoky Hill 10260009 Cataloging Unit Upper Saline 10260010 Cataloging Unit Lower Saline 10260011 Cataloging Unit Upper North Fork Solomon 10260012 Cataloging Unit Lower North Fork Solomon 10260013 Cataloging Unit Upper South Fork Solomon 10260014 Cataloging Unit Lower South Fork Solomon 10260015 Cataloging Unit Solomon 1027 Subregion Kansas 102701 Accounting Unit Kansas 10270101 Cataloging Unit Upper Kansas 10270102 Cataloging Unit Middle Kansas 10270103 Cataloging Unit Delaware 10270104 Cataloging Unit Lower Kansas, Kansas 102702 Accounting Unit Big Blue 10270201 Cataloging Unit Upper Big Blue 10270202 Cataloging Unit Middle Big Blue 10270203 Cataloging Unit West Fork Big Blue 10270204 Cataloging Unit Turkey 10270205 Cataloging Unit Lower Big Blue 10270206 Cataloging Unit Upper Little Blue 10270207 Cataloging Unit Lower Little Blue 1028 Subregion Chariton-Grand 102801 Accounting Unit Grand 10280101 Cataloging Unit Upper Grand 10280102 Cataloging Unit Thompson 10280103 Cataloging Unit Lower Grand 102802 Accounting Unit Chariton 10280201 Cataloging Unit Upper Chariton 10280202 Cataloging Unit Lower Chariton 10280203 Cataloging Unit Little Chariton 1029 Subregion Gasconade-Osage 102901 Accounting Unit Osage 10290101 Cataloging Unit Upper Marais Des Cygnes 10290102 Cataloging Unit Lower Marais Des Cygnes 10290103 Cataloging Unit Little Osage 10290104 Cataloging Unit Marmaton 10290105 Cataloging Unit Harry S. Truman Reservoir 10290106 Cataloging Unit Sac 10290107 Cataloging Unit Pomme De Terre 10290108 Cataloging Unit South Grand 10290109 Cataloging Unit Lake Of The Ozarks 10290110 Cataloging Unit Niangua 10290111 Cataloging Unit Lower Osage 102902 Accounting Unit Gasconade 10290201 Cataloging Unit Upper Gasconade 10290202 Cataloging Unit Big Piney 10290203 Cataloging Unit Lower Gasconade 1030 Subregion Lower Missouri 103001 Accounting Unit Lower Missouri-Blackwater 10300101 Cataloging Unit Lower Missouri-Crooked 10300102 Cataloging Unit Lower Missouri-Moreau 10300103 Cataloging Unit Lamine 10300104 Cataloging Unit Blackwater 103002 Accounting Unit Lower Missouri 10300200 Cataloging Unit Lower Missouri 11 Region Arkansas-White-Red Region 1101 Subregion Upper White 110100 Accounting Unit Upper White 11010001 Cataloging Unit Beaver Reservoir 11010002 Cataloging Unit James 11010003 Cataloging Unit Bull Shoals Lake 11010004 Cataloging Unit Middle White 11010005 Cataloging Unit Buffalo 11010006 Cataloging Unit North Fork White 11010007 Cataloging Unit Upper Black 11010008 Cataloging Unit Current 11010009 Cataloging Unit Lower Black 11010010 Cataloging Unit Spring 11010011 Cataloging Unit Eleven Point 11010012 Cataloging Unit Strawberry 11010013 Cataloging Unit Upper White-Village 11010014 Cataloging Unit Little Red 1102 Subregion Upper Arkansas 110200 Accounting Unit Upper Arkansas 11020001 Cataloging Unit Arkansas Headwaters 11020002 Cataloging Unit Upper Arkansas 11020003 Cataloging Unit Fountain 11020004 Cataloging Unit Chico 11020005 Cataloging Unit Upper Arkansas-Lake Meredith 11020006 Cataloging Unit Huerfano 11020007 Cataloging Unit Apishapa 11020008 Cataloging Unit Horse 11020009 Cataloging Unit Upper Arkansas-John Martin Reservoir 11020010 Cataloging Unit Purgatoire 11020011 Cataloging Unit Big Sandy 11020012 Cataloging Unit Rush 11020013 Cataloging Unit Two Butte 1103 Subregion Middle Arkansas 110300 Accounting Unit Middle Arkansas 11030001 Cataloging Unit Middle Arkansas-Lake Mckinney 11030002 Cataloging Unit Whitewoman 11030003 Cataloging Unit Arkansas-Dodge City 11030004 Cataloging Unit Coon-Pickerel 11030005 Cataloging Unit Pawnee 11030006 Cataloging Unit Buckner 11030007 Cataloging Unit Upper Walnut Creek 11030008 Cataloging Unit Lower Walnut Creek 11030009 Cataloging Unit Rattlesnake 11030010 Cataloging Unit Gar-Peace 11030011 Cataloging Unit Cow 11030012 Cataloging Unit Little Arkansas 11030013 Cataloging Unit Middle Arkansas-Slate 11030014 Cataloging Unit North Fork Ninnescah 11030015 Cataloging Unit South Fork Ninnescah 11030016 Cataloging Unit Ninnescah 11030017 Cataloging Unit Upper Walnut River 11030018 Cataloging Unit Lower Walnut River 1104 Subregion Upper Cimarron 110400 Accounting Unit Upper Cimarron 11040001 Cataloging Unit Cimarron Headwaters 11040002 Cataloging Unit Upper Cimarron 11040003 Cataloging Unit North Fork Cimarron 11040004 Cataloging Unit Sand Arroyo 11040005 Cataloging Unit Bear 11040006 Cataloging Unit Upper Cimarron-Liberal 11040007 Cataloging Unit Crooked 11040008 Cataloging Unit Upper Cimarron-Bluff 1105 Subregion Lower Cimarron 110500 Accounting Unit Lower Cimarron 11050001 Cataloging Unit Lower Cimarron-Eagle Chief 11050002 Cataloging Unit Lower Cimarron-Skeleton 11050003 Cataloging Unit Lower Cimarron 1106 Subregion Arkansas-Keystone 110600 Accounting Unit Arkansas-Keystone 11060001 Cataloging Unit Kaw Lake 11060002 Cataloging Unit Upper Salt Fork Arkansas 11060003 Cataloging Unit Medicine Lodge 11060004 Cataloging Unit Lower Salt Fork Arkansas 11060005 Cataloging Unit Chikaskia 11060006 Cataloging Unit Black Bear-Red Rock 1107 Subregion Neosho-Verdigris 110701 Accounting Unit Verdigris 11070101 Cataloging Unit Upper Verdigris 11070102 Cataloging Unit Fall 11070103 Cataloging Unit Middle Verdigris 11070104 Cataloging Unit Elk 11070105 Cataloging Unit Lower Verdigris 11070106 Cataloging Unit Caney 11070107 Cataloging Unit Bird 110702 Accounting Unit Neosho 11070201 Cataloging Unit Neosho Headwaters 11070202 Cataloging Unit Upper Cottonwood 11070203 Cataloging Unit Lower Cottonwood 11070204 Cataloging Unit Upper Neosho 11070205 Cataloging Unit Middle Neosho 11070206 Cataloging Unit Lake O' The Cherokees 11070207 Cataloging Unit Spring 11070208 Cataloging Unit Elk 11070209 Cataloging Unit Lower Neosho 1108 Subregion Upper Canadian 110800 Accounting Unit Upper Canadian 11080001 Cataloging Unit Canadian Headwaters 11080002 Cataloging Unit Cimarron 11080003 Cataloging Unit Upper Canadian 11080004 Cataloging Unit Mora 11080005 Cataloging Unit Conchas 11080006 Cataloging Unit Upper Canadian-Ute Reservoir 11080007 Cataloging Unit Ute 11080008 Cataloging Unit Revuelto 1109 Subregion Lower Canadian 110901 Accounting Unit Middle Canadian 11090101 Cataloging Unit Middle Canadian-Trujillo 11090102 Cataloging Unit Punta De Agua 11090103 Cataloging Unit Rita Blanca 11090104 Cataloging Unit Carrizo 11090105 Cataloging Unit Lake Meredith 11090106 Cataloging Unit Middle Canadian-Spring 110902 Accounting Unit Lower Canadian 11090201 Cataloging Unit Lower Canadian-Deer 11090202 Cataloging Unit Lower Canadian-Walnut 11090203 Cataloging Unit Little 11090204 Cataloging Unit Lower Canadian 1110 Subregion North Canadian 111001 Accounting Unit Upper Beaver 11100101 Cataloging Unit Upper Beaver 11100102 Cataloging Unit Middle Beaver 11100103 Cataloging Unit Coldwater 11100104 Cataloging Unit Palo Duro 111002 Accounting Unit Lower Beaver 11100201 Cataloging Unit Lower Beaver 11100202 Cataloging Unit Upper Wolf 11100203 Cataloging Unit Lower Wolf 111003 Accounting Unit Lower North Canadian 11100301 Cataloging Unit Middle North Canadian 11100302 Cataloging Unit Lower North Canadian 11100303 Cataloging Unit Deep Fork 1111 Subregion Lower Arkansas 111101 Accounting Unit Robert S. Kerr Reservoir 11110101 Cataloging Unit Polecat-Snake 11110102 Cataloging Unit Dirty-Greenleaf 11110103 Cataloging Unit Illinois 11110104 Cataloging Unit Robert S. Kerr Reservoir 11110105 Cataloging Unit Poteau 111102 Accounting Unit Lower Arkansas-Fourche La Fave 11110201 Cataloging Unit Frog-Mulberry 11110202 Cataloging Unit Dardanelle Reservoir 11110203 Cataloging Unit Lake Conway-Point Remove 11110204 Cataloging Unit Petit Jean 11110205 Cataloging Unit Cadron 11110206 Cataloging Unit Fourche La Fave 11110207 Cataloging Unit Lower Arkansas-Maumelle 1112 Subregion Red Headwaters 111201 Accounting Unit Prairie Dog Town Fork Red 11120101 Cataloging Unit Tierra Blanca 11120102 Cataloging Unit Palo Duro 11120103 Cataloging Unit Upper Prairie Dog Town Fork Red 11120104 Cataloging Unit Tule 11120105 Cataloging Unit Lower Prairie Dog Town Fork Red 111202 Accounting Unit Salt Fork Red 11120201 Cataloging Unit Upper Salt Fork Red 11120202 Cataloging Unit Lower Salt Fork Red 111203 Accounting Unit North Fork Red 11120301 Cataloging Unit Upper North Fork Red 11120302 Cataloging Unit Middle North Fork Red 11120303 Cataloging Unit Lower North Fork Red 11120304 Cataloging Unit Elm Fork Red 1113 Subregion Red-Washita 111301 Accounting Unit Red-Pease 11130101 Cataloging Unit Groesbeck-Sandy 11130102 Cataloging Unit Blue-China 11130103 Cataloging Unit North Pease 11130104 Cataloging Unit Middle Pease 11130105 Cataloging Unit Pease 111302 Accounting Unit Red-Lake Texoma 11130201 Cataloging Unit Farmers-Mud 11130202 Cataloging Unit Cache 11130203 Cataloging Unit West Cache 11130204 Cataloging Unit North Wichita 11130205 Cataloging Unit South Wichita 11130206 Cataloging Unit Wichita 11130207 Cataloging Unit Southern Beaver 11130208 Cataloging Unit Northern Beaver 11130209 Cataloging Unit Little Wichita 11130210 Cataloging Unit Lake Texoma 111303 Accounting Unit Washita 11130301 Cataloging Unit Washita Headwaters 11130302 Cataloging Unit Upper Washita 11130303 Cataloging Unit Middle Washita 11130304 Cataloging Unit Lower Washita 1114 Subregion Red-Sulphur 111401 Accounting Unit Red-Little 11140101 Cataloging Unit Bois D'Arc-Island 11140102 Cataloging Unit Blue 11140103 Cataloging Unit Muddy Boggy 11140104 Cataloging Unit Clear Boggy 11140105 Cataloging Unit Kiamichi 11140106 Cataloging Unit Pecan-Waterhole 11140107 Cataloging Unit Upper Little 11140108 Cataloging Unit Mountain Fork 11140109 Cataloging Unit Lower Little Arkansas, Oklahoma 111402 Accounting Unit Red-Saline 11140201 Cataloging Unit Mckinney-Posten Bayous 11140202 Cataloging Unit Middle Red-Coushatta 11140203 Cataloging Unit Loggy Bayou 11140204 Cataloging Unit Red Chute 11140205 Cataloging Unit Bodcau Bayou 11140206 Cataloging Unit Bayou Pierre 11140207 Cataloging Unit Lower Red-Lake Iatt 11140208 Cataloging Unit Saline Bayou 11140209 Cataloging Unit Black Lake Bayou 111403 Accounting Unit Big Cypress-Sulphur 11140301 Cataloging Unit Sulphur Headwaters 11140302 Cataloging Unit Lower Sulphur 11140303 Cataloging Unit White Oak Bayou 11140304 Cataloging Unit Cross Bayou 11140305 Cataloging Unit Lake O'The Pines 11140306 Cataloging Unit Caddo Lake 11140307 Cataloging Unit Little Cypress 12 Region Texas-Gulf Region 1201 Subregion Sabine 120100 Accounting Unit Sabine 12010001 Cataloging Unit Upper Sabine 12010002 Cataloging Unit Middle Sabine 12010003 Cataloging Unit Lake Fork 12010004 Cataloging Unit Toledo Bend Reservoir 12010005 Cataloging Unit Lower Sabine 1202 Subregion Neches 120200 Accounting Unit Neches 12020001 Cataloging Unit Upper Neches 12020002 Cataloging Unit Middle Neches 12020003 Cataloging Unit Lower Neches 12020004 Cataloging Unit Upper Angelina 12020005 Cataloging Unit Lower Angelina 12020006 Cataloging Unit Village 12020007 Cataloging Unit Pine Island Bayou 1203 Subregion Trinity 120301 Accounting Unit Upper Trinity 12030101 Cataloging Unit Upper West Fork Trinity 12030102 Cataloging Unit Lower West Fork Trinity 12030103 Cataloging Unit Elm Fork Trinity 12030104 Cataloging Unit Denton 12030105 Cataloging Unit Upper Trinity 12030106 Cataloging Unit East Fork Trinity 12030107 Cataloging Unit Cedar 12030108 Cataloging Unit Richland 12030109 Cataloging Unit Chambers 120302 Accounting Unit Lower Trinity 12030201 Cataloging Unit Lower Trinity-Tehuacana 12030202 Cataloging Unit Lower Trinity-Kickapoo 12030203 Cataloging Unit Lower Trinity 1204 Subregion Galveston Bay-San Jacinto 120401 Accounting Unit San Jacinto 12040101 Cataloging Unit West Fork San Jacinto 12040102 Cataloging Unit Spring 12040103 Cataloging Unit East Fork San Jacinto 12040104 Cataloging Unit Buffalo-San Jacinto 120402 Accounting Unit Galveston Bay-Sabine Lake 12040201 Cataloging Unit Sabine Lake 12040202 Cataloging Unit East Galveston Bay 12040203 Cataloging Unit North Galveston Bay 12040204 Cataloging Unit West Galveston Bay 12040205 Cataloging Unit Austin-Oyster 1205 Subregion Brazos Headwaters 120500 Accounting Unit Brazos Headwaters 12050001 Cataloging Unit Yellow House Draw 12050002 Cataloging Unit Blackwater Draw 12050003 Cataloging Unit North Fork Double Mountain Fork Brazos 12050004 Cataloging Unit Double Mountain Fork Brazos 12050005 Cataloging Unit Running Water Draw 12050006 Cataloging Unit White 12050007 Cataloging Unit Salt Fork Brazos 1206 Subregion Middle Brazos 120601 Accounting Unit Middle Brazos-Clear Fork 12060101 Cataloging Unit Middle Brazos-Millers 12060102 Cataloging Unit Upper Clear Fork Brazos 12060103 Cataloging Unit Paint 12060104 Cataloging Unit Lower Clear Fork Brazos 12060105 Cataloging Unit Hubbard 120602 Accounting Unit Middle Brazos-Bosque 12060201 Cataloging Unit Middle Brazos-Palo Pinto 12060202 Cataloging Unit Middle Brazos-Lake Whitney 12060203 Cataloging Unit Bosque 12060204 Cataloging Unit North Bosque 1207 Subregion Lower Brazos 120701 Accounting Unit Lower Brazos 12070101 Cataloging Unit Lower Brazos-Little Brazos 12070102 Cataloging Unit Yegua 12070103 Cataloging Unit Navasota 12070104 Cataloging Unit Lower Brazos 120702 Accounting Unit Little 12070201 Cataloging Unit Leon 12070202 Cataloging Unit Cowhouse 12070203 Cataloging Unit Lampasas 12070204 Cataloging Unit Little 12070205 Cataloging Unit San Gabriel 1208 Subregion Upper Colorado 1208 Subregion UpperColorado 120800 Accounting Unit Upper Colorado 12080001 Cataloging Unit Lost Draw 12080002 Cataloging Unit Colorado Headwaters 12080003 Cataloging Unit Monument-Seminole Draws 12080004 Cataloging Unit Mustang Draw 12080005 Cataloging Unit Johnson Draw 12080006 Cataloging Unit Sulphur Springs Draw 12080007 Cataloging Unit Beals 12080008 Cataloging Unit Upper Colorado 1209 Subregion Lower Colorado-San Bernard Coastal 120901 Accounting Unit Middle Colorado-Concho 12090101 Cataloging Unit Middle Colorado-Elm 12090102 Cataloging Unit South Concho 12090103 Cataloging Unit Middle Concho 12090104 Cataloging Unit North Concho 12090105 Cataloging Unit Concho 12090106 Cataloging Unit Middle Colorado 12090107 Cataloging Unit Pecan Bayou 12090108 Cataloging Unit Jim Ned 12090109 Cataloging Unit San Saba 12090110 Cataloging Unit Brady 120902 Accounting Unit Middle Colorado-Llano 12090201 Cataloging Unit Buchanan-Lyndon B. Johnson Lakes 12090202 Cataloging Unit North Llano 12090203 Cataloging Unit South Llano 12090204 Cataloging Unit Llano 12090205 Cataloging Unit Austin-Travis Lakes 12090206 Cataloging Unit Pedernales 120903 Accounting Unit Lower Colorado 12090301 Cataloging Unit Lower Colorado-Cummins 12090302 Cataloging Unit Lower Colorado 120904 Accounting Unit San Bernard Coastal 12090401 Cataloging Unit San Bernard 12090402 Cataloging Unit East Matagorda Bay 1210 Subregion Central Texas Coastal 121001 Accounting Unit Lavaca 12100101 Cataloging Unit Lavaca 12100102 Cataloging Unit Navidad 121002 Accounting Unit Guadalupe 12100201 Cataloging Unit Upper Guadalupe 12100202 Cataloging Unit Middle Guadalupe 12100203 Cataloging Unit San Marcos 12100204 Cataloging Unit Lower Guadalupe 121003 Accounting Unit San Antonio 12100301 Cataloging Unit Upper San Antonio 12100302 Cataloging Unit Medina 12100303 Cataloging Unit Lower San Antonio 12100304 Cataloging Unit Cibolo 121004 Accounting Unit Central Texas Coastal 12100401 Cataloging Unit East Matagorda Bay 12100402 Cataloging Unit West Matagorda Bay 12100403 Cataloging Unit East San Antonio Bay 12100404 Cataloging Unit West San Antonio Bay 12100405 Cataloging Unit Aransas Bay 12100406 Cataloging Unit Mission 12100407 Cataloging Unit Aransas 1211 Subregion Nueces-Southwestern Texas Coastal 121101 Accounting Unit Nueces 12110101 Cataloging Unit Nueces Headwaters 12110102 Cataloging Unit West Nueces 12110103 Cataloging Unit Upper Nueces 12110104 Cataloging Unit Turkey 12110105 Cataloging Unit Middle Nueces 12110106 Cataloging Unit Upper Frio 12110107 Cataloging Unit Hondo 12110108 Cataloging Unit Lower Frio 12110109 Cataloging Unit San Miguel 12110110 Cataloging Unit Atascosa 12110111 Cataloging Unit Lower Nueces 121102 Accounting Unit Southwestern Texas Coastal 12110201 Cataloging Unit North Corpus Christi Bay 12110202 Cataloging Unit South Corpus Christi Bay 12110203 Cataloging Unit North Laguna Madre 12110204 Cataloging Unit San Fernando 12110205 Cataloging Unit Baffin Bay 12110206 Cataloging Unit Palo Blanco 12110207 Cataloging Unit Central Laguna Madre 12110208 Cataloging Unit South Laguna Madre 13 Region Rio Grande Region 1301 Subregion Rio Grande Headwaters 130100 Accounting Unit Rio Grande Headwaters 13010001 Cataloging Unit Rio Grande Headwaters 13010002 Cataloging Unit Alamosa-Trinchera 13010003 Cataloging Unit San Luis 13010004 Cataloging Unit Saguache 13010005 Cataloging Unit Conejos 1302 Subregion Rio Grande-Elephant Butte 130201 Accounting Unit Upper Rio Grande 13020101 Cataloging Unit Upper Rio Grande 13020102 Cataloging Unit Rio Chama 130202 Accounting Unit Rio Grande-Elephant Butte 13020201 Cataloging Unit Rio Grande-Santa Fe 13020202 Cataloging Unit Jemez 13020203 Cataloging Unit Rio Grande-Albuquerque 13020204 Cataloging Unit Rio Puerco 13020205 Cataloging Unit Arroyo Chico 13020206 Cataloging Unit North Plains 13020207 Cataloging Unit Rio San Jose 13020208 Cataloging Unit Plains of San Agustin 13020209 Cataloging Unit Rio Salado 13020210 Cataloging Unit Jornada Del Muerto 13020211 Cataloging Unit Elephant Butte Reservoir 1303 Subregion Rio Grande-Mimbres 130301 Accounting Unit Rio Grande-Caballo 13030101 Cataloging Unit Caballo 13030102 Cataloging Unit El Paso-Las Cruces 13030103 Cataloging Unit Jornada Draw 130302 Accounting Unit Mimbres 13030201 Cataloging Unit Playas Lake 13030202 Cataloging Unit Mimbres 1304 Subregion Rio Grande-Amistad 130401 Accounting Unit Rio Grande-Fort Quitman 13040100 Cataloging Unit Rio Grande-Fort Quitman 130402 Accounting Unit Rio Grande-Amistad 13040201 Cataloging Unit Cibolo-Red Light 13040202 Cataloging Unit Alamito 13040203 Cataloging Unit Black Hills-Fresno 13040204 Cataloging Unit Terlingua 13040205 Cataloging Unit Big Bend 13040206 Cataloging Unit Maravillas 13040207 Cataloging Unit Santiago Draw 13040208 Cataloging Unit Reagan-Sanderson 13040209 Cataloging Unit San Francisco 13040210 Cataloging Unit Lozier Canyon 13040211 Cataloging Unit Big Canyon 13040212 Cataloging Unit Amistad Reservoir 130403 Accounting Unit Devils 13040301 Cataloging Unit Upper Devils 13040302 Cataloging Unit Lower Devils 13040303 Cataloging Unit Dry Devils 1305 Subregion Rio Grande Closed Basins 130500 Accounting Unit Rio Grande Closed Basins 13050001 Cataloging Unit Western Estancia 13050002 Cataloging Unit Eastern Estancia 13050003 Cataloging Unit Tularosa Valley 13050004 Cataloging Unit Salt Basin 1306 Subregion Upper Pecos 130600 Accounting Unit Upper Pecos 13060001 Cataloging Unit Pecos Headwaters 13060002 Cataloging Unit Pintada Arroyo 13060003 Cataloging Unit Upper Pecos 13060004 Cataloging Unit Taiban 13060005 Cataloging Unit Arroyo Del Macho 13060006 Cataloging Unit Gallo Arroyo 13060007 Cataloging Unit Upper Pecos-Long Arroyo 13060008 Cataloging Unit Rio Hondo 13060009 Cataloging Unit Rio Felix 13060010 Cataloging Unit Rio Penasco 13060011 Cataloging Unit Upper Pecos-Black 1307 Subregion Lower Pecos 130700 Accounting Unit Lower Pecos 13070001 Cataloging Unit Lower Pecos-Red Bluff Reservoir 13070002 Cataloging Unit Delaware 13070003 Cataloging Unit Toyah 13070004 Cataloging Unit Salt Draw 13070005 Cataloging Unit Barrilla Draw 13070006 Cataloging Unit Coyanosa-Hackberry Draws 13070007 Cataloging Unit Landreth-Monument Draws 13070008 Cataloging Unit Pecos 13070009 Cataloging Unit Tunas 13070010 Cataloging Unit Independence 13070011 Cataloging Unit Howard Draw 13070012 Cataloging Unit Lower Pecos 1308 Subregion Rio Grande-Falcon 130800 Accounting Unit Rio Grande-Falcon 13080001 Cataloging Unit Elm-Sycamore 13080002 Cataloging Unit San Ambrosia-Santa Isabel 13080003 Cataloging Unit International Falcon Reservoir 1309 Subregion Lower Rio Grande 130900 Accounting Unit Lower Rio Grande 13090001 Cataloging Unit Los Olmos 13090002 Cataloging Unit Lower Rio Grande 14 Region Upper Colorado Region 1401 Subregion Colorado Headwaters 140100 Accounting Unit Colorado Headwaters 14010001 Cataloging Unit Colorado Headwaters 14010002 Cataloging Unit Blue 14010003 Cataloging Unit Eagle 14010004 Cataloging Unit Roaring Fork 14010005 Cataloging Unit Colorado Headwaters-Plateau 14010006 Cataloging Unit Parachute-Roan 1402 Subregion Gunnison 140200 Accounting Unit Gunnison 14020001 Cataloging Unit East-Taylor 14020002 Cataloging Unit Upper Gunnison 14020003 Cataloging Unit Tomichi 14020004 Cataloging Unit North Fork Gunnison 14020005 Cataloging Unit Lower Gunnison 14020006 Cataloging Unit Uncompahgre 1403 Subregion Upper Colorado-Dolores 140300 Accounting Unit Upper Colorado-Dolores 14030001 Cataloging Unit Westwater Canyon 14030002 Cataloging Unit Upper Dolores 14030003 Cataloging Unit San Miguel 14030004 Cataloging Unit Lower Dolores 14030005 Cataloging Unit Upper Colorado-Kane Springs 1404 Subregion Great Divide-Upper Green 140401 Accounting Unit Upper Green 14040101 Cataloging Unit Upper Green 14040102 Cataloging Unit New Fork 14040103 Cataloging Unit Upper Green-Slate 14040104 Cataloging Unit Big Sandy 14040105 Cataloging Unit Bitter 14040106 Cataloging Unit Upper Green-Flaming Gorge Reservoir 14040107 Cataloging Unit Blacks Fork 14040108 Cataloging Unit Muddy 14040109 Cataloging Unit Vermilion 140402 Accounting Unit Great Divide Closed Basin 14040200 Cataloging Unit Great Divide Closed Basin 1405 Subregion White-Yampa 140500 Accounting Unit White-Yampa 14050001 Cataloging Unit Upper Yampa 14050002 Cataloging Unit Lower Yampa 14050003 Cataloging Unit Little Snake 14050004 Cataloging Unit Muddy 14050005 Cataloging Unit Upper White 14050006 Cataloging Unit Piceance-Yellow 14050007 Cataloging Unit Lower White 1406 Subregion Lower Green 140600 Accounting Unit Lower Green 14060001 Cataloging Unit Lower Green-Diamond 14060002 Cataloging Unit Ashley-Brush 14060003 Cataloging Unit Duchesne 14060004 Cataloging Unit Strawberry 14060005 Cataloging Unit Lower Green-Desolation Canyon 14060006 Cataloging Unit Willow 14060007 Cataloging Unit Price 14060008 Cataloging Unit Lower Green 14060009 Cataloging Unit San Rafael 1407 Subregion Upper Colorado-Dirty Devil 140700 Accounting Unit Upper Colorado-Dirty Devil 14070001 Cataloging Unit Upper Lake Powell 14070002 Cataloging Unit Muddy 14070003 Cataloging Unit Fremont 14070004 Cataloging Unit Dirty Devil 14070005 Cataloging Unit Escalante 14070006 Cataloging Unit Lower Lake Powell 14070007 Cataloging Unit Paria 1408 Subregion San Juan 140801 Accounting Unit Upper San Juan 14080101 Cataloging Unit Upper San Juan 14080102 Cataloging Unit Piedra 14080103 Cataloging Unit Blanco Canyon 14080104 Cataloging Unit Animas 14080105 Cataloging Unit Middle San Juan 14080106 Cataloging Unit Chaco 14080107 Cataloging Unit Mancos 140802 Accounting Unit Lower San Juan 14080201 Cataloging Unit Lower San Juan-Four Corners 14080202 Cataloging Unit McElmo 14080203 Cataloging Unit Montezuma 14080204 Cataloging Unit Chinle 14080205 Cataloging Unit Lower San Juan 15 Region Lower Colorado Region 1501 Subregion Lower Colorado-Lake Mead 150100 Accounting Unit Lower Colorado-Lake Mead 15010001 Cataloging Unit Lower Colorado-Marble Canyon 15010002 Cataloging Unit Grand Canyon 15010003 Cataloging Unit Kanab 15010004 Cataloging Unit Havasu Canyon 15010005 Cataloging Unit Lake Mead 15010006 Cataloging Unit Grand Wash 15010007 Cataloging Unit Red Lake 15010008 Cataloging Unit Upper Virgin 15010009 Cataloging Unit Fort Pearce Wash 15010010 Cataloging Unit Lower Virgin 15010011 Cataloging Unit White 15010012 Cataloging Unit Muddy 15010013 Cataloging Unit Meadow Valley Wash 15010014 Cataloging Unit Detrital Wash 15010015 Cataloging Unit Las Vegas Wash 1502 Subregion Little Colorado 150200 Accounting Unit Little Colorado 15020001 Cataloging Unit Little Colorado Headwaters 15020002 Cataloging Unit Upper Little Colorado 15020003 Cataloging Unit Carrizo Wash 15020004 Cataloging Unit Zuni 15020005 Cataloging Unit Silver 15020006 Cataloging Unit Upper Puerco 15020007 Cataloging Unit Lower Puerco 15020008 Cataloging Unit Middle Little Colorado 15020009 Cataloging Unit Leroux Wash 15020010 Cataloging Unit Chevelon Canyon 15020011 Cataloging Unit Cottonwood Wash 15020012 Cataloging Unit Corn-Oraibi 15020013 Cataloging Unit Polacca Wash 15020014 Cataloging Unit Jadito Wash 15020015 Cataloging Unit Canyon Diablo 15020016 Cataloging Unit Lower Little Colorado 15020017 Cataloging Unit Dinnebito Wash 15020018 Cataloging Unit Moenkopi Wash 1503 Subregion Lower Colorado 150301 Accounting Unit Lower Colorado 15030101 Cataloging Unit Havasu-Mohave Lakes 15030102 Cataloging Unit Piute Wash 15030103 Cataloging Unit Sacramento Wash 15030104 Cataloging Unit Imperial Reservoir 15030105 Cataloging Unit Bouse Wash 15030106 Cataloging Unit Tyson Wash 15030107 Cataloging Unit Lower Colorado 15030108 Cataloging Unit Yuma Desert 150302 Accounting Unit Bill Williams 15030201 Cataloging Unit Big Sandy 15030202 Cataloging Unit Burro 15030203 Cataloging Unit Santa Maria 15030204 Cataloging Unit Bill Williams 1504 Subregion Upper Gila 150400 Accounting Unit Upper Gila 15040001 Cataloging Unit Upper Gila 15040002 Cataloging Unit Upper Gila-Mangas 15040003 Cataloging Unit Animas Valley 15040004 Cataloging Unit San Francisco 15040005 Cataloging Unit Upper Gila-San Carlos Reservoir 15040006 Cataloging Unit San Simon 15040007 Cataloging Unit San Carlos 1505 Subregion Middle Gila 150501 Accounting Unit Middle Gila 15050100 Cataloging Unit Middle Gila 150502 Accounting Unit San Pedro-Willcox 15050201 Cataloging Unit Willcox Playa 15050202 Cataloging Unit Upper San Pedro 15050203 Cataloging Unit Lower San Pedro 150503 Accounting Unit Santa Cruz 15050301 Cataloging Unit Upper Santa Cruz 15050302 Cataloging Unit Rillito 15050303 Cataloging Unit Lower Santa Cruz 15050304 Cataloging Unit Brawley Wash 15050305 Cataloging Unit Aguirre Valley 15050306 Cataloging Unit Santa Rosa Wash 1506 Subregion Salt 150601 Accounting Unit Salt 15060101 Cataloging Unit Black 15060102 Cataloging Unit White 15060103 Cataloging Unit Upper Salt 15060104 Cataloging Unit Carrizo 15060105 Cataloging Unit Tonto 15060106 Cataloging Unit Lower Salt 150602 Accounting Unit Verde 15060201 Cataloging Unit Big Chino-Williamson Valley 15060202 Cataloging Unit Upper Verde 15060203 Cataloging Unit Lower Verde 1507 Subregion Lower Gila 150701 Accounting Unit Lower Gila-Agua Fria 15070101 Cataloging Unit Lower Gila-Painted Rock Reservoir 15070102 Cataloging Unit Agua Fria 15070103 Cataloging Unit Hassayampa 15070104 Cataloging Unit Centennial Wash 150702 Accounting Unit Lower Gila 15070201 Cataloging Unit Lower Gila 15070202 Cataloging Unit Tenmile Wash 15070203 Cataloging Unit San Cristobal Wash 1508 Subregion Sonora 150801 Accounting Unit Rio Sonoyta 15080101 Cataloging Unit San Simon Wash 15080102 Cataloging Unit Rio Sonoyta 15080103 Cataloging Unit Tule Desert 150802 Accounting Unit Rio De La Concepcion 15080200 Cataloging Unit Rio De La Concepcion 150803 Accounting Unit Rio De Bavispe 15080301 Cataloging Unit Whitewater Draw 15080302 Cataloging Unit San Bernardino Valley 15080303 Cataloging Unit Cloverdale 16 Region Great Basin Region 1601 Subregion Bear 160101 Accounting Unit Upper Bear 16010101 Cataloging Unit Upper Bear 16010102 Cataloging Unit Central Bear 160102 Accounting Unit Lower Bear 16010201 Cataloging Unit Bear Lake 16010202 Cataloging Unit Middle Bear 16010203 Cataloging Unit Little Bear-Logan 16010204 Cataloging Unit Lower Bear-Malad 1602 Subregion Great Salt Lake 160201 Accounting Unit Weber 16020101 Cataloging Unit Upper Weber 16020102 Cataloging Unit Lower Weber 160202 Accounting Unit Jordan 16020201 Cataloging Unit Utah Lake 16020202 Cataloging Unit Spanish Fork 16020203 Cataloging Unit Provo 16020204 Cataloging Unit Jordan 160203 Accounting Unit Great Salt Lake 16020301 Cataloging Unit Hamlin-Snake Valleys 16020302 Cataloging Unit Pine Valley 16020303 Cataloging Unit Tule Valley 16020304 Cataloging Unit Rush-Tooele Valleys 16020305 Cataloging Unit Skull Valley 16020306 Cataloging Unit Southern Great Salt Lake Desert 16020307 Cataloging Unit Pilot-Thousand Springs, Nevada, Utah 16020308 Cataloging Unit Northern Great Salt Lake Desert 16020309 Cataloging Unit Curlew Valley 16020310 Cataloging Unit Great Salt Lake 1603 Subregion Escalante Desert-Sevier Lake 160300 Accounting Unit Escalante Desert-Sevier Lake 16030001 Cataloging Unit Upper Sevier 16030002 Cataloging Unit East Fork Sevier 16030003 Cataloging Unit Middle Sevier 16030004 Cataloging Unit San Pitch 16030005 Cataloging Unit Lower Sevier 16030006 Cataloging Unit Escalante Desert 16030007 Cataloging Unit Beaver Bottoms-Upper Beaver 16030008 Cataloging Unit Lower Beaver 16030009 Cataloging Unit Sevier Lake 1604 Subregion Black Rock Desert-Humboldt 160401 Accounting Unit Humboldt 16040101 Cataloging Unit Upper Humboldt 16040102 Cataloging Unit North Fork Humboldt 16040103 Cataloging Unit South Fork Humboldt 16040104 Cataloging Unit Pine 16040105 Cataloging Unit Middle Humboldt 16040106 Cataloging Unit Rock 16040107 Cataloging Unit Reese 16040108 Cataloging Unit Lower Humboldt 16040109 Cataloging Unit Little Humboldt 160402 Accounting Unit Black Rock Desert 16040201 Cataloging Unit Upper Quinn 16040202 Cataloging Unit Lower Quinn 16040203 Cataloging Unit Smoke Creek Desert 16040204 Cataloging Unit Massacre Lake 16040205 Cataloging Unit Thousand-Virgin 1605 Subregion Central Lahontan 160501 Accounting Unit Truckee 16050101 Cataloging Unit Lake Tahoe 16050102 Cataloging Unit Truckee 16050103 Cataloging Unit Pyramid-Winnemucca Lakes 16050104 Cataloging Unit Granite Springs Valley 160502 Accounting Unit Carson 16050201 Cataloging Unit Upper Carson 16050202 Cataloging Unit Middle Carson 16050203 Cataloging Unit Carson Desert 160503 Accounting Unit Walker 16050301 Cataloging Unit East Walker 16050302 Cataloging Unit West Walker 16050303 Cataloging Unit Walker 16050304 Cataloging Unit Walker Lake 1606 Subregion Central Nevada Desert Basins 160600 Accounting Unit Central Nevada Desert Basins 16060001 Cataloging Unit Dixie Valley 16060002 Cataloging Unit Gabbs Valley 16060003 Cataloging Unit Southern Big Smoky Valley 16060004 Cataloging Unit Northern Big Smoky Valley 16060005 Cataloging Unit Diamond-Monitor Valleys 16060006 Cataloging Unit Little Smoky-Newark Valleys 16060007 Cataloging Unit Long-Ruby Valleys 16060008 Cataloging Unit Spring-Steptoe Valleys 16060009 Cataloging Unit Dry Lake Valley 16060010 Cataloging Unit Fish Lake-Soda Spring Valleys 16060011 Cataloging Unit Ralston-Stone Cabin Valleys 16060012 Cataloging Unit Hot Creek-Railroad Valleys 16060013 Cataloging Unit Cactus-Sarcobatus Flats 16060014 Cataloging Unit Sand Spring-Tikaboo Valleys 16060015 Cataloging Unit Ivanpah-Pahrump Valleys 17 Region Pacific Northwest Region 1701 Subregion Kootenai-Pend Oreille-Spokane 170101 Accounting Unit Kootenai 17010101 Cataloging Unit Middle Kootenai 17010102 Cataloging Unit Fisher 17010103 Cataloging Unit Yaak 17010104 Cataloging Unit Lower Kootenai 17010105 Cataloging Unit Moyie 17010106 Cataloging Unit Elk 170102 Accounting Unit Pend Oreille 17010201 Cataloging Unit Upper Clark Fork 17010202 Cataloging Unit Flint-Rock 17010203 Cataloging Unit Blackfoot 17010204 Cataloging Unit Middle Clark Fork 17010205 Cataloging Unit Bitterroot 17010206 Cataloging Unit North Fork Flathead 17010207 Cataloging Unit Middle Fork Flathead 17010208 Cataloging Unit Flathead Lake 17010209 Cataloging Unit South Fork Flathead 17010210 Cataloging Unit Stillwater 17010211 Cataloging Unit Swan 17010212 Cataloging Unit Lower Flathead 17010213 Cataloging Unit Lower Clark Fork 17010214 Cataloging Unit Pend Oreille Lake 17010215 Cataloging Unit Priest 17010216 Cataloging Unit Pend Oreille 170103 Accounting Unit Spokane 17010301 Cataloging Unit Upper Coeur D'Alene 17010302 Cataloging Unit South Fork Coeur D'Alene 17010303 Cataloging Unit Coeur D'Alene Lake 17010304 Cataloging Unit St. Joe 17010305 Cataloging Unit Upper Spokane 17010306 Cataloging Unit Hangman 17010307 Cataloging Unit Lower Spokane 17010308 Cataloging Unit Little Spokane 1702 Subregion Upper Columbia 170200 Accounting Unit Upper Columbia 17020001 Cataloging Unit Franklin D. Roosevelt Lake 17020002 Cataloging Unit Kettle 17020003 Cataloging Unit Colville 17020004 Cataloging Unit Sanpoil 17020005 Cataloging Unit Chief Joseph 17020006 Cataloging Unit Okanogan 17020007 Cataloging Unit Similkameen 17020008 Cataloging Unit Methow 17020009 Cataloging Unit Lake Chelan 17020010 Cataloging Unit Upper Columbia-Entiat 17020011 Cataloging Unit Wenatchee 17020012 Cataloging Unit Moses Coulee 17020013 Cataloging Unit Upper Crab 17020014 Cataloging Unit Banks Lake 17020015 Cataloging Unit Lower Crab 17020016 Cataloging Unit Upper Columbia-Priest Rapids 1703 Subregion Yakima 170300 Accounting Unit Yakima 17030001 Cataloging Unit Upper Yakima 17030002 Cataloging Unit Naches 17030003 Cataloging Unit Lower Yakima 1704 Subregion Upper Snake 170401 Accounting Unit Snake Headwaters 17040101 Cataloging Unit Snake Headwaters 17040102 Cataloging Unit Gros Ventre 17040103 Cataloging Unit Grays-Hobock 17040103 Cataloging Unit Greys-Hoback 17040104 Cataloging Unit Palisades 17040105 Cataloging Unit Salt 170402 Accounting Unit Upper Snake 17040201 Cataloging Unit Idaho Falls 17040202 Cataloging Unit Upper Henrys 17040203 Cataloging Unit Lower Henrys 17040204 Cataloging Unit Teton 17040205 Cataloging Unit Willow 17040206 Cataloging Unit American Falls 17040207 Cataloging Unit Blackfoot 17040208 Cataloging Unit Portneuf 17040209 Cataloging Unit Lake Walcott 17040210 Cataloging Unit Raft 17040211 Cataloging Unit Goose 17040212 Cataloging Unit Upper Snake-Rock 17040213 Cataloging Unit Salmon Falls 17040214 Cataloging Unit Beaver-Camas 17040215 Cataloging Unit Medicine Lodge 17040216 Cataloging Unit Birch 17040217 Cataloging Unit Little Lost 17040218 Cataloging Unit Big Lost 17040219 Cataloging Unit Big Wood 17040220 Cataloging Unit Camas 17040221 Cataloging Unit Little Wood 1705 Subregion Middle Snake 170501 Accounting Unit Middle Snake-Boise 17050101 Cataloging Unit C. J. Strike Reservoir 17050102 Cataloging Unit Bruneau 17050103 Cataloging Unit Middle Snake-Succor 17050104 Cataloging Unit Upper Owyhee 17050105 Cataloging Unit South Fork Owyhee 17050106 Cataloging Unit East Little Owyhee 17050107 Cataloging Unit Middle Owyhee 17050108 Cataloging Unit Jordan 17050109 Cataloging Unit Crooked-Rattlesnake 17050110 Cataloging Unit Lower Owyhee 17050111 Cataloging Unit North and Middle Forks Boise 17050112 Cataloging Unit Boise-Mores 17050113 Cataloging Unit South Fork Boise 17050114 Cataloging Unit Lower Boise 17050115 Cataloging Unit Middle Snake-Payette 17050116 Cataloging Unit Upper Malheur 17050117 Cataloging Unit Lower Malheur 17050118 Cataloging Unit Bully 17050119 Cataloging Unit Willow 17050120 Cataloging Unit South Fork Payette 17050121 Cataloging Unit Middle Fork Payette 17050122 Cataloging Unit Payette 17050123 Cataloging Unit North Fork Payette 17050124 Cataloging Unit Weiser 170502 Accounting Unit Middle Snake-Powder 17050201 Cataloging Unit Brownlee Reservoir 17050202 Cataloging Unit Burnt 17050203 Cataloging Unit Powder 1706 Subregion Lower Snake 170601 Accounting Unit Lower Snake 17060101 Cataloging Unit Hells Canyon 17060102 Cataloging Unit Imnaha 17060103 Cataloging Unit Lower Snake-Asotin 17060104 Cataloging Unit Upper Grande Ronde 17060105 Cataloging Unit Wallowa 17060106 Cataloging Unit Lower Grande Ronde 17060107 Cataloging Unit Lower Snake-Tucannon 17060108 Cataloging Unit Palouse 17060109 Cataloging Unit Rock 17060110 Cataloging Unit Lower Snake 170602 Accounting Unit Salmon 17060201 Cataloging Unit Upper Salmon 17060202 Cataloging Unit Pahsimeroi 17060203 Cataloging Unit Middle Salmon-Panther 17060204 Cataloging Unit Lemhi 17060205 Cataloging Unit Upper Middle Fork Salmon 17060206 Cataloging Unit Lower Middle Fork Salmon 17060207 Cataloging Unit Middle Salmon-Chamberlain 17060208 Cataloging Unit South Fork Salmon 17060209 Cataloging Unit Lower Salmon 17060210 Cataloging Unit Little Salmon 170603 Accounting Unit Clearwater 17060301 Cataloging Unit Upper Selway 17060302 Cataloging Unit Lower Selway 17060303 Cataloging Unit Lochsa 17060304 Cataloging Unit Middle Fork Clearwater 17060305 Cataloging Unit South Fork Clearwater 17060306 Cataloging Unit Clearwater 17060307 Cataloging Unit Upper North Fork Clearwater 17060308 Cataloging Unit Lower North Fork Clearwater 1707 Subregion Middle Columbia 170701 Accounting Unit Middle Columbia 17070101 Cataloging Unit Middle Columbia-Lake Wallula 17070102 Cataloging Unit Walla Walla 17070103 Cataloging Unit Umatilla 17070104 Cataloging Unit Willow 17070105 Cataloging Unit Middle Columbia-Hood 17070106 Cataloging Unit Klickitat 170702 Accounting Unit John Day 17070201 Cataloging Unit Upper John Day 17070202 Cataloging Unit North Fork John Day 17070203 Cataloging Unit Middle Fork John Day 17070204 Cataloging Unit Lower John Day 170703 Accounting Unit Deschutes 17070301 Cataloging Unit Upper Deschutes 17070302 Cataloging Unit Little Deschutes 17070303 Cataloging Unit Beaver-South Fork 17070304 Cataloging Unit Upper Crooked 17070305 Cataloging Unit Lower Crooked 17070306 Cataloging Unit Lower Deschutes 17070307 Cataloging Unit Trout 1708 Subregion Lower Columbia 170800 Accounting Unit Lower Columbia 17080001 Cataloging Unit Lower Columbia-Sandy 17080002 Cataloging Unit Lewis 17080003 Cataloging Unit Lower Columbia-Clatskanie 17080004 Cataloging Unit Upper Cowlitz 17080005 Cataloging Unit Lower Cowlitz 17080006 Cataloging Unit Lower Columbia 1709 Subregion Willamette 170900 Accounting Unit Willamette 17090001 Cataloging Unit Middle Fork Willamette 17090002 Cataloging Unit Coast Fork Willamette 17090003 Cataloging Unit Upper Willamette 17090004 Cataloging Unit Mckenzie 17090005 Cataloging Unit North Santiam 17090006 Cataloging Unit South Santiam 17090007 Cataloging Unit Middle Willamette 17090008 Cataloging Unit Yamhill 17090009 Cataloging Unit Molalla-Pudding 17090010 Cataloging Unit Tualatin 17090011 Cataloging Unit Clackamas 17090012 Cataloging Unit Lower Willamette 1710 Subregion Oregon-Washington Coastal 171001 Accounting Unit Washington Coastal 17100101 Cataloging Unit Hoh-Quillayute 17100102 Cataloging Unit Queets-Quinault 17100103 Cataloging Unit Upper Chehalis 17100104 Cataloging Unit Lower Chehalis 17100105 Cataloging Unit Grays Harbor 17100106 Cataloging Unit Willapa Bay 171002 Accounting Unit Northern Oregon Coastal 17100201 Cataloging Unit Necanicum 17100202 Cataloging Unit Nehalem 17100203 Cataloging Unit Wilson-Trusk-Nestuccu 17100204 Cataloging Unit Siletz-Yaquina 17100205 Cataloging Unit Alsea 17100206 Cataloging Unit Siuslaw 17100207 Cataloging Unit Siltcoos 171003 Accounting Unit Southern Oregon Coastal 17100301 Cataloging Unit North Umpqua 17100302 Cataloging Unit South Umpqua 17100303 Cataloging Unit Umpqua 17100304 Cataloging Unit Coos 17100305 Cataloging Unit Coquille 17100306 Cataloging Unit Sixes 17100307 Cataloging Unit Upper Rogue 17100308 Cataloging Unit Middle Rogue 17100309 Cataloging Unit Applegate 17100310 Cataloging Unit Lower Rogue 17100311 Cataloging Unit Illinois 17100312 Cataloging Unit Chetco 1711 Subregion Puget Sound 171100 Accounting Unit Puget Sound 17110001 Cataloging Unit Fraser 17110002 Cataloging Unit Strait of Georgia 17110003 Cataloging Unit San Juan Islands 17110004 Cataloging Unit Nooksack 17110005 Cataloging Unit Upper Skagit 17110006 Cataloging Unit Sauk 17110007 Cataloging Unit Lower Skagit 17110008 Cataloging Unit Stillaguamish 17110009 Cataloging Unit Skykomish 17110010 Cataloging Unit Snoqualmie 17110011 Cataloging Unit Snohomish 17110012 Cataloging Unit Lake Washington 17110013 Cataloging Unit Duwamish 17110014 Cataloging Unit Puyallup 17110015 Cataloging Unit Nisqually 17110016 Cataloging Unit Deschutes 17110017 Cataloging Unit Skokomish 17110018 Cataloging Unit Hood Canal 17110019 Cataloging Unit Puget Sound 17110020 Cataloging Unit Dungeness-Elwha 17110021 Cataloging Unit Crescent-Hoko 1712 Subregion Oregon Closed Basins 171200 Accounting Unit Oregon Closed Basins 17120001 Cataloging Unit Harney-Malheur Lakes 17120002 Cataloging Unit Silvies 17120003 Cataloging Unit Donner und Blitzen 17120004 Cataloging Unit Silver 17120005 Cataloging Unit Summer Lake 17120006 Cataloging Unit Lake Abert 17120007 Cataloging Unit Warner Lakes 17120008 Cataloging Unit Guano 17120009 Cataloging Unit Alvord Lake 18 Region California Region 1801 Subregion Klamath-Northern California Coastal 180101 Accounting Unit Northern California Coastal 18010101 Cataloging Unit Smith 18010102 Cataloging Unit Mad-Redwood 18010103 Cataloging Unit Upper Eel 18010104 Cataloging Unit Middle Fork Eel 18010105 Cataloging Unit Lower Eel 18010106 Cataloging Unit South Fork Eel 18010107 Cataloging Unit Mattole 18010108 Cataloging Unit Big-Navarro-Garcia 18010109 Cataloging Unit Gualala-Salmon 18010110 Cataloging Unit Russian 18010111 Cataloging Unit Bodega Bay 180102 Accounting Unit Klamath 18010201 Cataloging Unit Williamson 18010202 Cataloging Unit Sprague 18010203 Cataloging Unit Upper Klamath Lake 18010204 Cataloging Unit Lost 18010205 Cataloging Unit Butte 18010206 Cataloging Unit Upper Klamath 18010207 Cataloging Unit Shasta 18010208 Cataloging Unit Scott 18010209 Cataloging Unit Lower Klamath 18010210 Cataloging Unit Salmon 18010211 Cataloging Unit Trinity 18010212 Cataloging Unit South Fork Trinity 1802 Subregion Sacramento 180200 Accounting Unit Upper Sacramento 18020001 Cataloging Unit Goose Lake 18020002 Cataloging Unit Upper Pit 18020003 Cataloging Unit Lower Pit 18020004 Cataloging Unit McCloud 18020005 Cataloging Unit Sacramento Headwaters 180201 Accounting Unit Lower Sacramento 18020101 Cataloging Unit Sacramento-Lower Cow-Lower Clear 18020102 Cataloging Unit Lower Cottonwood 18020103 Cataloging Unit Sacramento-Lower Thomes 18020104 Cataloging Unit Sacramento-Stone Corral 18020105 Cataloging Unit Lower Butte 18020106 Cataloging Unit Lower Feather 18020107 Cataloging Unit Lower Yuba 18020108 Cataloging Unit Lower Bear 18020109 Cataloging Unit Lower Sacramento 18020110 Cataloging Unit Lower Cache 18020111 Cataloging Unit Lower American 18020112 Cataloging Unit Sacramento-Upper Clear 18020113 Cataloging Unit Cottonwood Headwaters 18020114 Cataloging Unit Upper Elder-Upper Thomes 18020115 Cataloging Unit Upper Stony 18020116 Cataloging Unit Upper Cache 18020117 Cataloging Unit Upper Putah 18020118 Cataloging Unit Upper Cow-Battle 18020119 Cataloging Unit Mill-Big Chico 18020120 Cataloging Unit Upper Butte 18020121 Cataloging Unit North Fork Feather 18020122 Cataloging Unit East Branch North Fork Feather 18020123 Cataloging Unit Middle Fork Feather 18020124 Cataloging Unit Honcut Headwaters 18020125 Cataloging Unit Upper Yuba 18020126 Cataloging Unit Upper Bear 18020127 Cataloging Unit Upper Coon-Upper Auburn 18020128 Cataloging Unit North Fork American 18020129 Cataloging Unit South Fork American 18020151 Cataloging Unit Cow Creek 18020152 Cataloging Unit Cottonwood Creek 18020153 Cataloging Unit Battle Creek 18020154 Cataloging Unit Clear Creek-Sacramento River 18020155 Cataloging Unit Paynes Creek-Sacramento River 18020156 Cataloging Unit Thomes Creek-Sacramento River 18020157 Cataloging Unit Big Chico Creek-Sacramento River 18020158 Cataloging Unit Butte Creek 18020159 Cataloging Unit Honcut Headwaters-Lower Feather 18020161 Cataloging Unit Upper Coon-Upper Auburn 18020162 Cataloging Unit Upper Putah 18020163 Cataloging Unit Lower Sacramento 1803 Subregion Tulare-Buena Vista Lakes 180300 Accounting Unit Tulare-Buena Vista Lakes 18030001 Cataloging Unit Upper Kern 18030002 Cataloging Unit South Fork Kern 18030003 Cataloging Unit Middle Kern-Upper Tehachapi-Grapevine 18030004 Cataloging Unit Upper Poso 18030005 Cataloging Unit Upper Deer-Upper White 18030006 Cataloging Unit Upper Tule 18030007 Cataloging Unit Upper Kaweah 18030008 Cataloging Unit Mill 18030009 Cataloging Unit Upper Dry 18030010 Cataloging Unit Upper King 18030011 Cataloging Unit Upper Los Gatos-Avenal 18030012 Cataloging Unit Tulare Lake Bed 1804 Subregion San Joaquin 180400 Accounting Unit San Joaquin 18040001 Cataloging Unit Middle San Joaquin-Lower Chowchilla 18040002 Cataloging Unit Lower San Joaquin River 18040003 Cataloging Unit San Joaquin Delta 18040004 Cataloging Unit Lower Calaveras-Mormon Slough 18040005 Cataloging Unit Lower Cosumnes-Lower Mokelumne 18040006 Cataloging Unit Upper San Joaquin 18040007 Cataloging Unit Fresno River 18040008 Cataloging Unit Upper Merced 18040009 Cataloging Unit Upper Tuolumne 18040010 Cataloging Unit Upper Stanislaus 18040011 Cataloging Unit Upper Calaveras California 18040012 Cataloging Unit Upper Mokelumne 18040013 Cataloging Unit Upper Cosumnes 18040014 Cataloging Unit Panoche-San Luis Reservoir 18040051 Cataloging Unit Rock Creek-French Camp Slough 1805 Subregion San Francisco Bay 180500 Accounting Unit San Francisco Bay 18050001 Cataloging Unit Suisun Bay 18050002 Cataloging Unit San Pablo Bay 18050003 Cataloging Unit Coyote 18050004 Cataloging Unit San Francisco Bay 18050005 Cataloging Unit Tomales-Drake Bays 18050006 Cataloging Unit San Francisco Coastal South 1806 Subregion Central California Coastal 180600 Accounting Unit Central California Coastal 18060001 Cataloging Unit San Lorenzo-Soquel 18060002 Cataloging Unit Pajaro 18060003 Cataloging Unit Carrizo Plain 18060004 Cataloging Unit Estrella 18060005 Cataloging Unit Salinas 18060006 Cataloging Unit Central Coastal 18060007 Cataloging Unit Cuyama 18060008 Cataloging Unit Santa Maria 18060009 Cataloging Unit San Antonio 18060010 Cataloging Unit Santa Ynez 18060011 Cataloging Unit Alisal-Elkhorn Sloughs 18060012 Cataloging Unit Carmel 18060013 Cataloging Unit Santa Barbara Coastal 18060014 Cataloging Unit Santa Barbara Channel Islands 18060015 Cataloging Unit Monterey Bay 1807 Subregion Southern California Coastal 180701 Accounting Unit Ventura-San Gabriel Coastal 18070101 Cataloging Unit Ventura 18070102 Cataloging Unit Santa Clara 18070103 Cataloging Unit Calleguas 18070104 Cataloging Unit Santa Monica Bay 18070105 Cataloging Unit Los Angeles 18070106 Cataloging Unit San Gabriel 18070107 Cataloging Unit San Pedro Channel Islands 180702 Accounting Unit Santa Ana 18070201 Cataloging Unit Seal Beach 18070202 Cataloging Unit San Jacinto 18070203 Cataloging Unit Santa Ana 18070204 Cataloging Unit Newport Bay 180703 Accounting Unit Laguna-San Diego Coastal 18070301 Cataloging Unit Aliso-San Onofre 18070302 Cataloging Unit Santa Margarita 18070303 Cataloging Unit San Luis Rey-Escondido 18070304 Cataloging Unit San Diego 18070305 Cataloging Unit Cottonwood-Tijuana 1808 Subregion North Lahontan 180800 Accounting Unit North Lahontan 18080001 Cataloging Unit Surprise Valley 18080002 Cataloging Unit Madeline Plains 18080003 Cataloging Unit Honey-Eagle Lakes 1809 Subregion Northern Mojave-Mono Lake 180901 Accounting Unit Mono Lake-Owens Lakes 180901 Accounting Unit Mono-Owens Lakes 18090101 Cataloging Unit Mono Lake 18090102 Cataloging Unit Crowley Lake 18090103 Cataloging Unit Owens Lake 180902 Accounting Unit Northern Mojave 18090201 Cataloging Unit Eureka-Saline Valleys 18090202 Cataloging Unit Upper Amargosa 18090203 Cataloging Unit Death Valley-Lower Amargosa 18090204 Cataloging Unit Panamint Valley 18090205 Cataloging Unit Indian Wells-Searles Valleys 18090206 Cataloging Unit Antelope-Fremont Valleys 18090207 Cataloging Unit Coyote-Cuddeback Lakes 18090208 Cataloging Unit Mojave 1810 Subregion Southern Mojave-Salton Sea 181001 Accounting Unit Southern Mojave 18100100 Cataloging Unit Southern Mojave 181002 Accounting Unit Salton Sea 18100200 Cataloging Unit Salton Sea 18100201 Cataloging Unit Whitewater River 18100202 Cataloging Unit Carrizo Creek 18100203 Cataloging Unit San Felipe Creek 18100204 Cataloging Unit Salton Sea 19 Region Alaska Region 1901 Subregion Southeast Alaska 190101 Accounting Unit Southern Southeast Alaska 19010101 Cataloging Unit Southeast Mainland 19010102 Cataloging Unit Ketchikan 19010103 Cataloging Unit Prince of Wales 19010104 Cataloging Unit Bradfield Canal 19010105 Cataloging Unit Burroughs Bay 19010106 Cataloging Unit Headwaters Portland Canal 19010107 Cataloging Unit Outlet Portland Canal 190102 Accounting Unit Central Southeast Alaska 19010201 Cataloging Unit Mainland 19010202 Cataloging Unit Kuiu-Kupreanof-Mitkof-Etolin-Zarembo-Wrangell 19010203 Cataloging Unit Baranof-Chichagof Islands 19010204 Cataloging Unit Admiralty Island 19010205 Cataloging Unit Lower Iskut 19010206 Cataloging Unit Holkham Bay 19010207 Cataloging Unit Stikine River 19010208 Cataloging Unit Thomas Bay 190103 Accounting Unit Northern Southeast Alaska 19010301 Cataloging Unit Lynn Canal 19010302 Cataloging Unit Glacier Bay 19010303 Cataloging Unit Chilkat-Skagway Rivers 19010304 Cataloging Unit Taku River 190104 Accounting Unit Gulf of Alaska 19010401 Cataloging Unit Yakutat Bay 19010402 Cataloging Unit Bering Glacier 19010403 Cataloging Unit Tatshenshini River 19010404 Cataloging Unit Alsek River 19010405 Cataloging Unit Yakutat Bay-Gulf of Alaska 19010406 Cataloging Unit Palma Bay 190105 Accounting Unit Icy Strait-Chatham Strait 19010500 Cataloging Unit Icy Strait-Chatham Strait 1902 Subregion South Central Alaska 190201 Accounting Unit Copper River 19020101 Cataloging Unit Upper Copper River 19020102 Cataloging Unit Middle Copper River 19020103 Cataloging Unit Chitina River 19020104 Cataloging Unit Lower Copper River 190202 Accounting Unit Prince William Sound 19020201 Cataloging Unit Eastern Prince William Sound 19020202 Cataloging Unit Western Prince William Sound 19020203 Cataloging Unit Prince William Sound 190203 Accounting Unit Kenai Peninsula 19020301 Cataloging Unit Lower Kenai Peninsula 19020302 Cataloging Unit Upper Kenai Peninsula 190204 Accounting Unit Knik Arm 19020401 Cataloging Unit Anchorage 19020402 Cataloging Unit Matanuska 190205 Accounting Unit Susitna River 19020501 Cataloging Unit Upper Susitna River 19020502 Cataloging Unit Chulitna River 19020503 Cataloging Unit Talkeetna River 19020504 Cataloging Unit Yentna River 19020505 Cataloging Unit Lower Susitna River 190206 Accounting Unit Western Cook Inlet 19020601 Cataloging Unit Redoubt-Trading Bays 19020602 Cataloging Unit Tuxedni-Kamishak Bays 190207 Accounting Unit Kodiak-Shelikof 19020701 Cataloging Unit Kodiak-Afognak Islands 19020702 Cataloging Unit Shelikof Strait 190208 Accounting Unit Cook Inlet 19020800 Cataloging Unit Cook Inlet 1903 Subregion Southwest Alaska 190301 Accounting Unit Aleutian Islands 19030101 Cataloging Unit Cold Bay 19030102 Cataloging Unit Fox Islands 19030103 Cataloging Unit Western Aleutian Islands 19030104 Cataloging Unit Pribilof Islands 190302 Accounting Unit Kvichak-Port Heiden 19030201 Cataloging Unit Port Heiden 19030202 Cataloging Unit Ugashik Bay 19030203 Cataloging Unit Egegik Bay 19030204 Cataloging Unit Naknek 19030205 Cataloging Unit Lake Clark 19030206 Cataloging Unit Lake Iliamna 190303 Accounting Unit Nushagak River 19030301 Cataloging Unit Upper Nushagak River 19030302 Cataloging Unit Mulchatna River 19030303 Cataloging Unit Lower Nushagak River 19030304 Cataloging Unit Wood River 19030305 Cataloging Unit Togiak 19030306 Cataloging Unit Nushagak Bay 190304 Accounting Unit Upper Kuskokwim River 19030401 Cataloging Unit North Fork Kuskokwim River 19030402 Cataloging Unit Farewell Lake 19030403 Cataloging Unit Takotna River 19030404 Cataloging Unit Holitna River 19030405 Cataloging Unit Stony River 19030406 Cataloging Unit Middle Fork Kuskokwim River 19030407 Cataloging Unit South Fork Kuskokwim River 190305 Accounting Unit Lower Kuskokwim River 19030501 Cataloging Unit Aniak 19030502 Cataloging Unit Kuskokwim Delta 19030503 Cataloging Unit Nunivak-St. Matthew Islands 1904 Subregion Yukon Alaska 190401 Accounting Unit Canada 19040101 Cataloging Unit White River 19040102 Cataloging Unit Ladue River 19040103 Cataloging Unit Sixtymile River 19040104 Cataloging Unit Fortymile River 190402 Accounting Unit Porcupine River 19040201 Cataloging Unit Old Crow River 19040202 Cataloging Unit Coleen River 19040203 Cataloging Unit Sheenjek River 19040204 Cataloging Unit Black River 19040205 Cataloging Unit Porcupine Flats 190403 Accounting Unit Chandalar-Christian Rivers 19040301 Cataloging Unit Middle Fork-North Fork Chandalar Rivers 19040302 Cataloging Unit East Fork Chandalar River 19040303 Cataloging Unit Christian River 19040304 Cataloging Unit Lower Chandalar River 190404 Accounting Unit Upper Yukon River 19040401 Cataloging Unit Eagle to Circle 19040402 Cataloging Unit Birch-Beaver Creeks 19040403 Cataloging Unit Yukon Flats 19040404 Cataloging Unit Ramparts 190405 Accounting Unit Tanana River 19040501 Cataloging Unit Nebesna-Chisana Rivers 19040502 Cataloging Unit Tok 19040503 Cataloging Unit Healy Lake 19040504 Cataloging Unit Delta River 19040505 Cataloging Unit Salcha River 19040506 Cataloging Unit Chena River 19040507 Cataloging Unit Tanana Flats 19040508 Cataloging Unit Nenana River 19040509 Cataloging Unit Tolovana River 19040510 Cataloging Unit Kantishna River 19040511 Cataloging Unit Lower Tanana River 190406 Accounting Unit Koyukuk River 19040601 Cataloging Unit Upper Koyukuk River 19040602 Cataloging Unit South Fork Koyukuk River 19040603 Cataloging Unit Alatna River 19040604 Cataloging Unit Kanuti River 19040605 Cataloging Unit Allakaket 19040606 Cataloging Unit Huslia River 19040607 Cataloging Unit Dulbi River 19040608 Cataloging Unit Koyukuk Flats 19040609 Cataloging Unit Kateel River 190407 Accounting Unit Central Yukon 19040701 Cataloging Unit Tozitna River 19040702 Cataloging Unit Nowitna River 19040703 Cataloging Unit Melozitna River 19040704 Cataloging Unit Ramparts to Ruby 19040705 Cataloging Unit Galena 190408 Accounting Unit Lower Yukon 19040801 Cataloging Unit Anvik River 19040802 Cataloging Unit Upper Innoko River 19040803 Cataloging Unit Lower Innoko River 19040804 Cataloging Unit Anvik to Pilot Station 19040805 Cataloging Unit Yukon Delta 1905 Subregion Northwest Alaska 190501 Accounting Unit Norton Sound 19050101 Cataloging Unit St. Lawrence Island 19050102 Cataloging Unit Unalakleet 19050103 Cataloging Unit Norton Bay 19050104 Cataloging Unit Nome 19050105 Cataloging Unit Imuruk Basin 190502 Accounting Unit Northern Seward Peninsula 19050201 Cataloging Unit Shishmaref 19050202 Cataloging Unit Goodhope-Spafarief Bay 19050203 Cataloging Unit Buckland River 190503 Accounting Unit Kobuk-Selawik Rivers 19050301 Cataloging Unit Selawik Lake 19050302 Cataloging Unit Upper Kobuk River 19050303 Cataloging Unit Middle Kobuk River 19050304 Cataloging Unit Lower Kobuk River 190504 Accounting Unit Noatak River-Lisburne Peninsula 19050401 Cataloging Unit Upper Noatak River 19050402 Cataloging Unit Middle Noatak River 19050403 Cataloging Unit Lower Noatak River 19050404 Cataloging Unit Wulik-Kivalina Rivers 19050405 Cataloging Unit Lisburne Peninsula 190505 Accounting Unit Kotzebue Sound 19050500 Cataloging Unit Kotzebue Sound 1906 Subregion Arctic Alaska 190601 Accounting Unit Western Arctic 19060101 Cataloging Unit Kukpowruk River 19060102 Cataloging Unit Kokolik River 19060103 Cataloging Unit Utukok River 190602 Accounting Unit Barrow Alaska 19060201 Cataloging Unit Kuk River 19060202 Cataloging Unit Northwest Coast 19060203 Cataloging Unit Meade River 19060204 Cataloging Unit Ikpikpuk River 19060205 Cataloging Unit Harrison Bay 19060206 Cataloging Unit Admiralty Bay-Dease Inlet 190603 Accounting Unit Colville River 19060301 Cataloging Unit Upper Colville River 19060302 Cataloging Unit Killik River 19060303 Cataloging Unit Chandler-Anaktuvuk Rivers 19060304 Cataloging Unit Lower Colville River 190604 Accounting Unit Prudhoe Bay 19060401 Cataloging Unit Kuparuk River 19060402 Cataloging Unit Sagavanirktok River 19060403 Cataloging Unit Mikkelsen Bay 190605 Accounting Unit Eastern Arctic 19060501 Cataloging Unit Canning River 19060502 Cataloging Unit Camden Bay 19060503 Cataloging Unit Beaufort Lagoon 1907 Subregion Headwaters Yukon-Lake Laberge 190701 Accounting Unit Headwaters Yukon River 19070101 Cataloging Unit Atlin Lake 19070102 Cataloging Unit Bennett Lake 19070103 Cataloging Unit Tagish Lake 19070104 Cataloging Unit Takhini River 20 Region Hawaii Region 2001 Subregion Hawaii 200100 Accounting Unit Hawaii 20010000 Cataloging Unit Hawaii 2002 Subregion Maui 200200 Accounting Unit Maui 20020000 Cataloging Unit Maui 2003 Subregion Kahoolawe 200300 Accounting Unit Kahoolawe 20030000 Cataloging Unit Kahoolawe 2004 Subregion Lanai 200400 Accounting Unit Lanai 20040000 Cataloging Unit Lanai 2005 Subregion Molokai 200500 Accounting Unit Molokai 20050000 Cataloging Unit Molokai 2006 Subregion Oahu 200600 Accounting Unit Oahu 20060000 Cataloging Unit Oahu 2007 Subregion Kauai 200700 Accounting Unit Kauai 20070000 Cataloging Unit Kauai 2008 Subregion Niihau 200800 Accounting Unit Niihau 20080000 Cataloging Unit Niihau 2009 Subregion Northwestern Hawaiian Islands 200900 Accounting Unit Northwestern Hawaiian Islands 20090000 Cataloging Unit Northwestern Hawaiian Islands 21 Region Caribbean Region 2101 Subregion Puerto Rico 210100 Accounting Unit Puerto Rico 21010001 Cataloging Unit Interior Puerto Rico 21010002 Cataloging Unit Cibuco-Guajataca 21010003 Cataloging Unit Culebrinas-Guanajibo 21010004 Cataloging Unit Southern Puerto Rico 21010005 Cataloging Unit Eastern Puerto Rico 21010006 Cataloging Unit Puerto Rican Islands 2102 Subregion Virgin Islands 210200 Accounting Unit Virgin Islands 21020001 Cataloging Unit St. John-St. Thomas 21020002 Cataloging Unit St. Croix 2103 Subregion Caribbean Outlying Areas 210300 Accounting Unit Caribbean Outlying Areas 21030001 Cataloging Unit Canal Zone 21030002 Cataloging Unit Navassa 21030003 Cataloging Unit Roncador-Serrana