Water Resources of the United States
Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units from the 1987 USGS Water-Supply Paper 2294Please note: HUC numbers have changed since publication of WSP 2294 from 1987.huc basin 01 New England 0101 St. John 010100 St. John 01010001 Upper St. John 01010002 Allagash 01010003 Fish 01010004 Aroostook 01010005 Meduxnekeag 0102 Penobscot 010200 Penobscot 01020001 West Branch Penobscot 01020002 East Branch Penobscot 01020003 Mattawamkeag 01020004 Piscataquis 01020005 Lower Penobscot 0103 Kennebec 010300 Kennebec 01030001 Upper Kennebec 01030002 Dead 01030003 Lower Kennebec 0104 Androscoggin 010400 Androscoggin 01040001 Upper Androscoggin 01040002 Lower Androscoggin 0105 Maine Coastal 010500 Maine Coastal 01050001 St. Croix 01050002 Maine Coastal 01050003 St. George-Sheepscot 0106 Saco 010600 Saco 01060001 Presumpscot 01060002 Saco 01060003 Piscataqua-Salmon Falls 0107 Merrimack 010700 Merrimack 01070001 Pemigewasset 01070002 Merrimack 01070003 Contoocook 01070004 Nashua 01070005 Concord 0108 Connecticut 010801 Upper Connecticut 01080101 Upper Connecticut 01080102 Passumpsic 01080103 Waits 01080104 Upper Connecticut-Mascoma 01080105 White 01080106 Black-Ottauquechee 01080107 West 010802 Lower Connecticut 01080201 Middle Connecticut 01080202 Miller 01080203 Deerfield 01080204 Chicopee 01080205 Lower Connecticut 01080206 Westfield 01080207 Farmington 0109 Massachusetts-Rhode Island Coastal 010900 Massachusetts-Rhode Island Coastal 01090001 Charles 01090002 Cape Cod 01090003 Blackstone 01090004 Narragansett 01090005 Pawcatuck-Wood 0110 Connecticut Coastal 011000 Connecticut Coastal 01100001 Quinebaug 01100002 Shetucket 01100003 Thames 01100004 Quinnipiac 01100005 Housatonic 01100006 Saugatuck 01100007 Long Island Sound 0111 St. Francois 011100 St. Francois 01110000 St. Francois 02 Mid Atlantic 0201 Richelieu 020100 Richelieu 02010001 Lake George 02010002 Otter 02010003 Winooski 02010004 Ausable 02010005 Lamoille 02010006 Great Chazy-Saranac 02010007 Missisquoi 0202 Upper Hudson 020200 Upper Hudson 02020001 Upper Hudson 02020002 Sacandaga 02020003 Hudson-Hoosic 02020004 Mohawk 02020005 Schoharie 02020006 Middle Hudson 02020007 Rondout 02020008 Hudson-Wappinger 0203 Lower Hudson-Long Island 020301 Lower Hudson 02030101 Lower Hudson 02030102 Bronx 02030103 Hackensack-Passaic 02030104 Sandy Hook-Staten Island 02030105 Raritan 020302 Long Island 02030201 Northern Long Island 02030202 Southern Long Island 0204 Delaware 020401 Upper Delaware 02040101 Upper Delaware 02040102 East Branch Delaware 02040103 Lackawaxen 02040104 Middle Delaware-Mongaup-Brodhead 02040105 Middle Delaware-Musconetcong 02040106 Lehigh 020402 Lower Delaware 02040201 Crosswicks-Neshaminy 02040202 Lower Delaware 02040203 Schuylkill 02040204 Delaware Bay 02040205 Brandywine-Christina 02040206 Cohansey-Maurice 02040207 Broadkill-Smyrna 020403 New Jersey Coastal 02040301 Mullica-Toms 02040302 Great Egg Harbor 0205 Susquehanna 020501 Upper Susquehanna 02050101 Upper Susquehanna 02050102 Chenango 02050103 Owego-Wappasening 02050104 Tioga 02050105 Chemung 02050106 Upper Susquehanna-Tunkhannock 02050107 Upper Susquehanna-Lackawanna 020502 West Branch Susquehanna 02050201 Upper West Branch Susquehanna 02050202 Sinnemahoning 02050203 Middle West Branch Susquehanna 02050204 Bald Eagle 02050205 Pine 02050206 Lower West Branch Susquehanna 020503 Lower Susquehanna 02050301 Lower Susquehanna-Penns 02050302 Upper Juniata 02050303 Raystown 02050304 Lower Juniata 02050305 Lower Susquehanna-Swatara 02050306 Lower Susquehanna 0206 Upper Chesapeake 020600 Upper Chesapeake 02060001 Upper Chesapeake Bay 02060002 Chester-Sassafras 02060003 Gunpowder-Patapsco 02060004 Severn 02060005 Choptank 02060006 Patuxent 02060007 Blackwater-Wicomico 02060008 Nanticoke 02060009 Pocomoke 02060010 Chincoteague 0207 Potomac 020700 Potomac 02070001 South Branch Potomac 02070002 North Branch Potomac 02070003 Cacapon-Town 02070004 Conococheague-Opequon 02070005 South Fork Shenandoah 02070006 North Fork Shenandoah 02070007 Shenandoah 02070008 Middle Potomac-Catoctin 02070009 Monocacy 02070010 Middle Potomac-Anacostia-Occoquan 02070011 Lower Potomac 0208 Lower Chesapeake 020801 Lower Chesapeake 02080101 Lower Chesapeake Bay 02080102 Great Wicomico-Piankatank 02080103 Rapidan-Upper Rappahannock 02080104 Lower Rappahannock 02080105 Mattaponi 02080106 Pamunkey 02080107 York 02080108 Lynnhaven-Poquoson 02080109 Western Lower Delmarva 02080110 Eastern Lower Delmarva 020802 James 02080201 Upper James 02080202 Maury 02080203 Middle James-Buffalo 02080204 Rivanna 02080205 Middle James-Willis 02080206 Lower James 02080207 Appomattox 02080208 Hampton Roads 03 South Atlantic-Gulf 0301 Chowan-Roanoke 030101 Roanoke 03010101 Upper Roanoke 03010102 Middle Roanoke 03010103 Upper Dan 03010104 Lower Dan 03010105 Banister 03010106 Roanoke Rapids 03010107 Lower Roanoke 030102 Albemarle-Chowan 03010201 Nottoway 03010202 Blackwater 03010203 Chowan 03010204 Meherrin 03010205 Albemarle 0302 Neuse-Pamlico 030201 Pamlico 03020101 Upper Tar 03020102 Fishing 03020103 Lower Tar 03020104 Pamlico 03020105 Pamlico Sound 03020106 Bogue-Core Sounds 030202 Neuse 03020201 Upper Neuse 03020202 Middle Neuse 03020203 Contentnea 03020204 Lower Neuse 0303 Cape Fear 030300 Cape Fear 03030001 New 03030002 Haw 03030003 Deep 03030004 Upper Cape Fear 03030005 Lower Cape Fear 03030006 Black 03030007 Northeast Cape Fear 0304 Pee Dee 030401 Upper Pee Dee 03040101 Upper Yadkin 03040102 South Yadkin 03040103 Lower Yadkin 03040104 Upper Pee Dee 03040105 Rocky 030402 Lower Pee Dee 03040201 Lower Pee Dee 03040202 Lynches 03040203 Lumber 03040204 Little Pee Dee 03040205 Black 03040206 Waccamaw 03040207 Carolina Coastal-Sampit 0305 Edisto-Santee 030501 Santee 03050101 Upper Catawba 03050102 South Fork Catawba 03050103 Lower Catawba 03050104 Wateree 03050105 Upper Broad 03050106 Lower Broad 03050107 Tyger 03050108 Enoree 03050109 Saluda 03050110 Congaree 03050111 Lake Marion 03050112 Santee 030502 Edisto-South Carolina Coastal 03050201 Cooper 03050202 South Carolina Coastal 03050203 North Fork Edisto 03050204 South Fork Edisto 03050205 Edisto 03050206 Four Hole Swamp 03050207 Salkehatchie 03050208 Broad-St. Helena 0306 Ogeechee-Savannah 030601 Savannah 03060101 Seneca 03060102 Tugaloo 03060103 Upper Savannah 03060104 Broad 03060105 Little 03060106 Middle Savannah 03060107 Stevens 03060108 Brier 03060109 Lower Savannah 030602 Ogeechee 03060201 Upper Ogeechee 03060202 Lower Ogeechee 03060203 Canoochee 03060204 Ogeechee Coastal 0307 Altamaha - St. Marys 030701 Altamaha 03070101 Upper Oconee 03070102 Lower Oconee 03070103 Upper Ocmulgee 03070104 Lower Ocmulgee 03070105 Little Ocmulgee 03070106 Altamaha 03070107 Ohoopee 030702 St. Marys - Satilla 03070201 Satilla 03070202 Little Satilla 03070203 Cumberland-St. Simons 03070204 St. Marys 03070205 Nassau 0308 St. Johns 030801 St. Johns 03080101 Upper St. Johns 03080102 Oklawaha 03080103 Lower St. Johns 030802 East Florida Coastal 03080201 Daytona - St. Augustine 03080202 Cape Canaveral 03080203 Vero Beach 0309 Southern Florida 030901 Kissimmee 03090101 Kissimmee 03090102 Northern Okeechobee Inflow 03090103 Western Okeechobee Inflow 030902 Southern Florida 03090201 Lake Okeechobee 03090202 Everglades 03090203 Florida Bay-Florida Keys 03090204 Big Cypress Swamp 03090205 Caloosahatchee 0310 Peace-Tampa Bay 031001 Peace 03100101 Peace 03100102 Myakka 03100103 Charlotte Harbor 031002 Tampa Bay 03100201 Sarasota Bay 03100202 Manatee 03100203 Little Manatee 03100204 Alafia 03100205 Hillsborough 03100206 Tampa Bay 03100207 Crystal-Pithlachascotee 03100208 Withlacoochee 0311 Suwannee 031101 Aucilla-Waccasassa 03110101 Waccasassa 03110102 Econfina-Steinhatchee 03110103 Aucilla 031102 Suwannee 03110201 Upper Suwannee 03110202 Alapaha 03110203 withlacoochee 03110204 Little 03110205 Lower Suwannee 03110206 Santa Fe 0312 Ochlockonee 031200 Ochlockonee. Georgia 03120001 Apalachee Bay-St. Marks 03120002 Upper Ochlockonee 03120003 Lower Ochlockonee 0313 Apalachicola 031300 Apalachicola 03130001 Upper Chattahoochee 03130002 Middle Chattahoochee-Lake Harding 03130003 Middle Chattahoochee-Walter F. George Reservoir 03130004 Lower Chattahoochee 03130005 Upper Flint 03130006 Middle Flint 03130007 Kinchafoonee-Muckalee 03130008 Lower Flint 03130009 Ichawaynochaway 03130010 Spring 03130011 Apalachicola 03130012 Chipola 03130013 New 03130014 Apalachicola Bay 0314 Choctawhatchee - Escambia 031401 Florida Panhandle Coastal 03140101 St. Andrew-St. Joseph Bays 03140102 Choctawhatchee Bay 03140103 Yellow 03140104 Blackwater 03140105 Pensacola Bay 03140106 Perdido 03140107 Perdido Bay 031402 Choctawhatchee 03140201 Upper Choctawhatchee 03140202 Pea 03140203 Lower Choctawhatchee 031403 Escambia 03140301 Upper Conecuh 03140302 Patsaliga 03140303 Sepulga 03140304 Lower Conecuh 03140305 Escambia 0315 Alabama 031501 Coosa-Tallapoosa 03150101 Conasauga 03150102 Coosawattee 03150103 Oostanaula 03150104 Etowah 03150105 Upper Coosa 03150106 Middle Coosa 03150107 Lower Coosa 03150108 Upper Tallapoosa 03150109 Middle Tallapoosa 03150110 Lower Tallapoosa 031502 Alabama 03150201 Upper Alabama 03150202 Cahaba 03150203 Middle Alabama 03150204 Lower Alabama 0316 Mobile - Tombigbee 031601 Black Warrior - Tombigbee 03160101 Upper Tombigbee 03160102 Town 03160103 Buttahatchee 03160104 Tibbee 03160105 Luxapallila 03160106 Middle Tombigbee-Lubbub 03160107 Sipsey 03160108 Noxubee 03160109 Mulberry 03160110 Sipsey Fork 03160111 Locust 03160112 Upper Black Warrior 03160113 Lower Black Warrior 031602 Mobile Bay- Tombigbee 03160201 Middle Tombigbee-Chickasaw 03160202 Sucarnoochee 03160203 Lower Tombigbee 03160204 Mobile - Tensaw 03160205 Mobile Bay 0317 Pascagoula 031700 Pascagoula. Mississippi 03170001 Chunky-Okatibbee 03170002 Upper Chickasawhay 03170003 Lower Chickasawhay 03170004 Upper Leaf 03170005 Lower Leaf 03170006 Pascagoula 03170007 Black 03170008 Escatawpa 03170009 Mississippi Coastal 0318 Pearl 031800 Pearl 03180001 Upper Pearl 03180002 Middle Pearl-Strong 03180003 Middle Pearl-Silver 03180004 Lower Pearl. Mississippi 03180005 Bogue Chitto 04 Great Lakes 0401 Western Lake Superior 040101 Northwestern Lake Superior 04010101 Baptism-Brule 04010102 Beaver-Lester 040102 St. Louis 04010201 St. Louis 04010202 Cloquet 040103 Southwestern Lake Superior 04010301 Beartrap-Nemadji 04010302 Bad-Montreal 0402 Southern Lake Superior-Lake Superior 040201 Southcentral Lake Superior 04020101 Black-Presque Isle 04020102 Ontonagon 04020103 Keweenaw Peninsula 04020104 Sturgeon 04020105 Dead-Kelsey 040202 Southeastern Lake Superior 04020201 Betsy-Chocolay 04020202 Tahquamenon 04020203 Waiska 040203 Lake Superior 04020300 Lake Superior 0403 Northwestern Lake Michigan 040301 Northwestern Lake Michigan 04030101 Manitowoc-Sheboygan 04030102 Door-Kewaunee 04030103 Duck-Pensaukee 04030104 Oconto 04030105 Peshtigo 04030106 Brule 04030107 Michigamme 04030108 Menominee 04030109 Cedar-Ford 04030110 Escanaba 04030111 Tacoosh-Whitefish 04030112 Fishdam-Sturgeon 040302 Fox 04030201 Upper Fox 04030202 Wolf 04030203 Lake Winnebago 04030204 Lower Fox 0404 Southwestern Lake Michigan 040400 Southwestern Lake Michigan 04040001 Little Calumet-Galien 04040002 Pike-Root 04040003 Milwaukee 0405 Southeastern Lake Michigan 040500 Southeastern Lake Michigan 04050001 St. Joseph 04050002 Black-Macatawa 04050003 Kalamazoo 04050004 Upper Grand 04050005 Maple 04050006 Lower Grand 04050007 Thornapple 0406 Northeastern Lake Michigan-Lake Michigan 040601 Northeastern Lake Michigan 04060101 Pere Marquette-White 04060102 Muskegon 04060103 Manistee 04060104 Betsie-Platte 04060105 Boardman-Charlevoix 04060106 Manistique 04060107 Brevoort-Millecoquins 040602 Lake Michigan 04060200 Lake Michigan 0407 Northwestern Lake Huron 040700 Northwestern Lake Huron 04070001 St. Marys 04070002 Carp-Pine 04070003 Lone Lake-Ocqueoc 04070004 Cheboygan 04070005 Black 04070006 Thunder Bay 04070007 Au Sable 0408 Southwestern Lake Huron-Lake Huron 040801 Southwestern Lake Huron 04080101 Au Gres-Rifle 04080102 Kawkawlin-Pine 04080103 Pigeon-Wiscoggin 04080104 Birch-Willow 040802 Saginaw 04080201 Tittabawassee 04080202 Pine 04080203 Shiawassee 04080204 Flint 04080205 Cass 04080206 Saginaw 040803 Lake Huron 04080300 Lake Huron 0409 St. Clair-Detroit 040900 St. Clair-Detroit 04090001 St. Clair 04090002 Lake St. Clair 04090003 Clinton 04090004 Detroit 04090005 Huron 0410 Western Lake Erie 041000 Western Lake Erie 04100001 Ottawa-Stony 04100002 Raisin 04100003 St. Joseph 04100004 St. Marys 04100005 Upper Maumee 04100006 Tiffin 04100007 Auglaize 04100008 Blanchard 04100009 Lower Maumee 04100010 Cedar-Portage 04100011 Sandusky 04100012 Huron-Vermilion 0411 Southern Lake Erie 041100 Southern Lake Erie 04110001 Black-Rocky 04110002 Cuyahoga 04110003 Ashtabula-Chagrin 04110004 Grand 0412 Eastern Lake Erie-Lake Erie 041201 Eastern Lake Erie 04120101 Chautauqua-Conneaut 04120102 Cattaraugus 04120103 Buffalo-Eighteenmile 04120104 Niagara 041202 Lake Erie 04120200 Lake Erie 0413 Southwestern Lake Ontario 041300 Southwestern Lake Ontario 04130001 Oak Orchard-Twelvemile 04130002 Upper Genesee 04130003 Lower Genesee 0414 Southeastern Lake Ontario 041401 Southeastern Lake Ontario 04140101 Irondequoit-Ninemile 04140102 Salmon-Sandy 041402 Oswego 04140201 Seneca 04140202 Oneida 04140203 Oswego 0415 Northeastern Lake Ontario-Lake Ontario-St. Lawrence 041501 Northeastern Lake Ontario 04150101 Black 04150102 Chaumont-Perch 041502 Lake Ontario 04150200 Lake Ontario 041503 St. Lawrence 04150301 Upper St. Lawrence 04150302 Oswegatchie 04150303 Indian 04150304 Grass 04150305 Raquette 04150306 St. Regis 04150307 English-Salmon 05 Ohio 0501 Allegheny 050100 Allegheny 05010001 Upper Allegheny 05010002 Conewango 05010003 Middle Allegheny-Tionesta 05010004 French 05010005 Clarion 05010006 Middle Allegheny-Redbank 05010007 Conemaugh 05010008 Kiskiminetas 05010009 Lower Allegheny 0502 Monongahela 050200 Monongahela 05020001 Tygart Valley 05020002 West Fork 05020003 Upper Monongahela 05020004 Cheat 05020005 Lower Monongahela 05020006 Youghiogheny 0503 Upper Ohio 050301 Upper Ohio-Beaver 05030101 Upper Ohio 05030102 Shenango 05030103 Mahoning 05030104 Beaver 05030105 Connoquenessing 05030106 Upper Ohio-Wheeling 050302 Upper Ohio-Little Kanawha 05030201 Little Muskingum-Middle Island 05030202 Upper Ohio-Shade 05030203 Little Kanawha 05030204 Hocking 0504 Muskingum 050400 Muskingum 05040001 Tuscarawas 05040002 Mohican 05040003 Walhonding 05040004 Muskingum 05040005 Wills 05040006 Licking 0505 Kanawha 050500 Kanawha 05050001 Upper New 05050002 Middle New 05050003 Greenbrier 05050004 Lower New 05050005 Gauley 05050006 Upper Kanawha 05050007 Elk 05050008 Lower Kanawha 05050009 Coal 0506 Scioto 050600 Scioto 05060001 Upper Scioto 05060002 Lower Scioto 05060003 Paint 0507 Big Sandy-Guyandotte 050701 Guyandotte 05070101 Upper Guyandotte 05070102 Lower Guyandotte 050702 Big Sandy 05070201 Tug 05070202 Upper Levisa 05070203 Lower Levisa 05070204 Big Sandy 0508 Great Miami 050800 Great Miami 05080001 Upper Great Miami 05080002 Lower Great Miami 05080003 Whitewater 0509 Middle Ohio 050901 Middle Ohio-Raccoon 05090101 Raccoon-Symmes 05090102 Twelvepole 05090103 Little Scioto-Tygarts 05090104 Little Sandy 050902 Middle Ohio-Little Miami 05090201 Ohio Brush-Whiteoak 05090202 Little Miami 05090203 Middle Ohio-Laughery 0510 Kentucky-Licking 051001 Licking 05100101 Licking 05100102 South Fork Licking 051002 Kentucky 05100201 North Fork Kentucky 05100202 Middle Fork Kentucky 05100203 South Fork Kentucky 05100204 Upper Kentucky 05100205 Lower Kentucky 0511 Green 051100 Green 05110001 Upper Green 05110002 Barren 05110003 Middle Green 05110004 Rough 05110005 Lower Green 05110006 Pond 0512 Wabash 051201 Wabash 05120101 Upper Wabash 05120102 Salamonie 05120103 Mississinewa 05120104 Eel 05120105 Middle Wabash-Deer 05120106 Tippecanoe 05120107 Wildcat 05120108 Middle Wabash-Little Vermilion 05120109 Vermilion 05120110 Sugar 05120111 Middle Wabash-Busseron 05120112 Embarras 05120113 Lower Wabash 05120114 Little Wabash 05120115 Skillet 051202 Patoka-White 05120201 Upper White 05120202 Lower White 05120203 Eel 05120204 Driftwood 05120205 Flatrock-Haw 05120206 Upper East Fork White 05120207 Muscatatuck 05120208 Lower East Fork White 05120209 Patoka 0513 Cumberland 051301 Upper Cumberland 05130101 Upper Cumberland 05130102 Rockcastle 05130103 Upper Cumberland-Lake Cumberland 05130104 South Fork Cumberland 05130105 Obey 05130106 Upper Cumberland-Cordell Hull 05130107 Collins 05130108 Caney 051302 Lower Cumberland 05130201 Lower Cumberland-Old Hickory Lake 05130202 Lower Cumberland-Sycamore 05130203 Stones 05130204 Harpeth 05130205 Lower Cumberland 05130206 Red 0514 Lower Ohio 051401 Lower Ohio-Salt 05140101 Silver-Little Kentucky 05140102 Salt 05140103 Rolling Fork 05140104 Blue-Sinking 051402 Lower Ohio 05140201 Lower Ohio-Little Pigeon 05140202 Highland-Pigeon 05140203 Lower Ohio-Bay 05140204 Saline 05140205 Tradewater 05140206 Lower Ohio 06 Tennessee 0601 Upper Tennessee 060101 French Broad-Holston 06010101 North Fork Holston 06010102 South Fork Holston 06010103 Watauga 06010104 Holston 06010105 Upper French Broad 06010106 Pigeon 06010107 Lower French Broad 06010108 Nolichucky 060102 Upper Tennessee 06010201 Watts Bar Lake 06010202 Upper Little Tennessee 06010203 Tuckasegee 06010204 Lower Little Tennessee 06010205 Upper Clinch 06010206 Powell 06010207 Lower Clinch 06010208 Emory 0602 Middle Tennessee-Hiwassee 060200 Middle Tennessee-Hiwassee 06020001 Middle Tennessee-Chickamauga 06020002 Hiwassee 06020003 Ocoee 06020004 Sequatchie 0603 Middle Tennessee-Elk 060300 Middle Tennessee-Elk 06030001 Guntersville Lake 06030002 Wheeler Lake 06030003 Upper Elk 06030004 Lower Elk 06030005 Pickwick Lake 06030006 Bear 0604 Lower Tennessee 060400 Lower Tennessee 06040001 Lower Tennessee-Beech 06040002 Upper Duck 06040003 Lower Duck 06040004 Buffalo 06040005 Kentucky Lake 06040006 Lower Tennessee 07 Upper Mississippi 0701 Mississippi Headwaters 070101 Mississippi Headwaters 07010101 Mississippi Headwaters 07010102 Leech Lake 07010103 Prairie-Willow 07010104 Elk-Nokasippi 07010105 Pine 07010106 Crow Wing 07010107 Redeye 07010108 Long Prairie 070102 Upper Mississippi-Crow-Rum 07010201 Platte-Spunk 07010202 Sauk 07010203 Clearwater-Elk 07010204 Crow 07010205 South Fork Crow 07010206 Twin Cities 07010207 Rum 0702 Minnesota 070200 Minnesota 07020001 Upper Minnesota 07020002 Pomme De Terre 07020003 Lac Qui Parle 07020004 Hawk-Yellow Medicine 07020005 Chippewa 07020006 Redwood 07020007 Middle Minnesota 07020008 Cottonwood 07020009 Blue Earth 07020010 Watonwan 07020011 Le Sueur 07020012 Lower Minnesota 0703 St. Croix 070300 St. Croix 07030001 Upper St. Croix 07030002 Namekagon 07030003 Kettle 07030004 Snake 07030005 Lower St. Croix 0704 Upper Mississippi-Black-Root 070400 Upper Mississippi-Black-Root 07040001 Rush-Vermillion 07040002 Cannon 07040003 Buffalo-Whitewater 07040004 Zumbro 07040005 Trempealeau 07040006 La Crosse-Pine 07040007 Black 07040008 Root 0705 Chippewa 070500 Chippewa 07050001 Upper Chippewa 07050002 Flambeau 07050003 South Fork Flambeau 07050004 Jump 07050005 Lower Chippewa 07050006 Eau Claire 07050007 Red Cedar 0706 Upper Mississippi-Maquoketa-Plum 070600 Upper Mississippi-Maquoketa-Plum 07060001 Coon-Yellow 07060002 Upper Iowa 07060003 Grant-Little Maquoketa 07060004 Turkey 07060005 Apple-Plum 07060006 Maquoketa 0707 Wisconsin 070700 Wisconsin 07070001 Upper Wisconsin 07070002 Lake Dubay 07070003 Castle Rock 07070004 Baraboo 07070005 Lower Wisconsin 07070006 Kickapoo 0708 Upper Mississippi-Iowa-Skunk-Wapsipinicon 070801 Upper Mississippi-Skunk-Wapsipinicon 07080101 Copperas-Duck 07080102 Upper Wapsipinicon 07080103 Lower Wapsipinicon 07080104 Flint-Henderson 07080105 South Skunk 07080106 North Skunk 07080107 Skunk 070802 Iowa 07080201 Upper Cedar 07080202 Shell Rock 07080203 Winnebago 07080204 West Fork Cedar 07080205 Middle Cedar 07080206 Lower Cedar 07080207 Upper Iowa 07080208 Middle Iowa 07080209 Lower Iowa 0709 Rock 070900 Rock 07090001 Upper Rock 07090002 Crawfish 07090003 Pecatonica 07090004 Sugar 07090005 Lower Rock 07090006 Kishwaukee 07090007 Green 0710 Des Moines 071000 Des Moines 07100001 Des Moines Headwaters 07100002 Upper Des Moines 07100003 East Fork Des Moines 07100004 Middle Des Moines 07100005 Boone 07100006 North Raccoon 07100007 South Raccoon 07100008 Lake Red Rock 07100009 Lower Des Moines 0711 Upper Mississippi-Salt 071100 Upper Mississippi-Salt 07110001 Bear-Wyaconda 07110002 North Fabius 07110003 South Fabius 07110004 The Sny 07110005 North Fork Salt 07110006 South Fork Salt 07110007 Salt 07110008 Cuivre 07110009 Peruque-Piasa 0712 Upper Illinois 071200 Upper Illinois 07120001 Kankakee 07120002 Iroquois 07120003 Chicago 07120004 Des Plaines 07120005 Upper Illinois 07120006 Upper Fox 07120007 Lower Fox 0713 Lower Illinois 071300 Lower Illinois 07130001 Lower Illinois-Senachwine Lake 07130002 Vermilion 07130003 Lower Illinois-Lake Chautauqua 07130004 Mackinaw 07130005 Spoon 07130006 Upper Sangamon 07130007 South Fork Sangamon 07130008 Lower Sangamon 07130009 Salt 07130010 La Moine 07130011 Lower Illinois 07130012 Macoupin 0714 Upper Mississippi-Kaskaskia-Meramec 071401 Upper Mississippi-Meramec 07140101 Cahokia-Joachim 07140102 Meramec 07140103 Bourbeuse 07140104 Big 07140105 Upper Mississippi-Cape Girardeau 07140106 Big Muddy 07140107 Whitewater 07140108 Cache 071402 Kaskaskia 07140201 Upper Kaskaskia 07140202 Middle Kaskaskia 07140203 Shoal 07140204 Lower Kaskaskia 08 Lower Mississippi 0801 Lower Mississippi-Hatchie 080101 Lower Mississippi-Memphis 08010100 Lower Mississippi-Memphis 080102 Hatchie-Obion 08010201 Bayou De Chien-Mayfield 08010202 Obion 08010203 South Fork Obion 08010204 North Fork Forked Deer 08010205 South Fork Forked Deer 08010206 Forked Deer 08010207 Upper Hatchie 08010208 Lower Hatchie 08010209 Loosahatchie 08010210 Wolf 08010211 Horn Lake-Nonconnah 0802 Lower Mississippi - St. Francis 080201 Lower Mississippi-Helena 08020100 Lower Mississippi-Helena 080202 St. Francis 08020201 New Madrid-St. Johns 08020202 Upper St. Francis 08020203 Lower St. Francis 08020204 Little River Ditches 08020205 L'anguille 080203 Lower White 08020301 Lower White-Bayou Des Arc 08020302 Cache 08020303 Lower White 08020304 Big 080204 Lower Arkansas 08020401 Lower Arkansas 08020402 Bayou Meto 0803 Lower Mississippi - Yazoo 080301 Lower Mississippi-Greenville 08030100 Lower Mississippi-Greenville 080302 Yazoo 08030201 Little Tallahatchie 08030202 Tallahatchie 08030203 Yocona 08030204 Coldwater 08030205 Yalobusha 08030206 Upper Yazoo 08030207 Big Sunflower 08030208 Lower Yazoo 08030209 Deer-Steele 0804 Lower Red - Ouachita 080401 Upper Ouachita 08040101 Ouachita Headwaters 08040102 Upper Ouachita 08040103 Little Missouri 080402 Lower Ouachita 08040201 Lower Ouachita-Smackover 08040202 Lower Ouachita-Bayou De Loutre 08040203 Upper Saline 08040204 Lower Saline 08040205 Bayou Bartholomew 08040206 Bayou D'arbonne 08040207 Lower Ouachita 080403 Lower Red 08040301 Lower Red 08040302 Castor 08040303 Dugdemona 08040304 Little 08040305 Black 08040306 Bayou Cocodrie 0805 Boeuf-Tensas 080500 Boeuf-Tensas 08050001 Boeuf 08050002 Bayou Macon 08050003 Tensas 0806 Lower Mississippi - Big Black 080601 Lower Mississippi-Natchez 08060100 Lower Mississippi-Natchez 080602 Big Black - Homochitto 08060201 Upper Big Black 08060202 Lower Big Black 08060203 Bayou Pierre 08060204 Coles Creek 08060205 Homochitto 08060206 Buffalo 0807 Lower Mississippi-Lake Maurepas 080701 Lower Mississippi-Baton Rouge 08070100 Lower Mississippi-Baton Rouge 080702 Lake Maurepas 08070201 Bayou Sara-Thompson 08070202 Amite 08070203 Tickfaw 08070204 Lake Maurepas 08070205 Tangipahoa 080703 Lower Grand 08070300 Lower Grand 0808 Louisiana Coastal 080801 Atchafalaya - Vermilion 08080101 Atchafalaya 08080102 Bayou Teche 08080103 Vermilion 080802 Calcasieu - Mermentau 08080201 Mermentau Headwaters 08080202 Mermentau 08080203 Upper Calcasieu 08080204 Whisky Chitto 08080205 West Fork Calcasieu 08080206 Lower Calcasieu 0809 Lower Mississippi 080901 Lower Mississippi-New Orleans 08090100 Lower Mississippi-New Orleans 080902 Lake Pontchartrain 08090201 Liberty Bayou-Tchefuncta 08090202 Lake Pontchartrain 08090203 Eastern Louisiana Coastal 080903 Central Louisiana Coastal 08090301 East Central Louisiana Coastal 08090302 West Central Louisiana Coastal 09 Souris-Red-Rainy 0901 Souris 090100 Souris 09010001 Upper Souris 09010002 Des Lacs 09010003 Lower Souris 09010004 Willow 09010005 Deep 0902 Red 090201 Upper Red 09020101 Bois De Sioux 09020102 Mustinka 09020103 Otter Tail 09020104 Upper Red 09020105 Western Wild Rice 09020106 Buffalo 09020107 Elm-Marsh 09020108 Eastern Wild Rice 09020109 Goose 090202 Devils Lake-Sheyenne 09020201 Devils Lake 09020202 Upper Sheyenne 09020203 Middle Sheyenne 09020204 Lower Sheyenne 09020205 Maple 090203 Lower Red 09020301 Sandhill-Wilson 09020302 Red Lakes 09020303 Red Lake 09020304 Thief 09020305 Clearwater 09020306 Grand Marais-Red 09020307 Turtle 09020308 Forest 09020309 Snake 09020310 Park 09020311 Lower Red 09020312 Two Rivers 09020313 Pembina 09020314 Roseau 0903 Rainy 090300 Rainy 09030001 Rainy Headwaters 09030002 Vermilion 09030003 Rainy Lake 09030004 Upper Rainy 09030005 Little Fork 09030006 Big Fork 09030007 Rapid 09030008 Lower Rainy 09030009 Lake of the Woods 10 Missouri 1001 Saskatchewan 100100 Saskatchewan 10010001 Belly 10010002 St. Mary 1002 Missouri Headwaters 100200 Missouri Headwaters 10020001 Red Rock 10020002 Beaverhead 10020003 Ruby 10020004 Big Hole 10020005 Jefferson 10020006 Boulder 10020007 Madison 10020008 Gallatin 1003 Missouri-Marias 100301 Upper Missouri 10030101 Upper Missouri 10030102 Upper Missouri-Dearborn 10030103 Smith 10030104 Sun 10030105 Belt 100302 Marias 10030201 Two Medicine 10030202 Cut Bank 10030203 Marias 10030204 Willow 10030205 Teton 1004 Missouri-Musselshell 100401 Fort Peck Lake 10040101 Bullwhacker-Dog 10040102 Arrow 10040103 Judith 10040104 Fort Peck Reservoir 10040105 Big Dry 10040106 Little Dry 100402 Musselshell 10040201 Upper Musselshell 10040202 Middle Musselshell 10040203 Flatwillow 10040204 Box Elder 10040205 Lower Musselshell 1005 Milk 100500 Milk 10050001 Milk Headwaters 10050002 Upper Milk 10050003 Wild Horse Lake 10050004 Middle Milk 10050005 Big Sandy 10050006 Sage 10050007 Lodge 10050008 Battle 10050009 Peoples 10050010 Cottonwood 10050011 Whitewater 10050012 Lower Milk 10050013 Frenchman 10050014 Beaver 10050015 Rock 10050016 Porcupine 1006 Missouri-Poplar 100600 Missouri-Poplar 10060001 Prarie Elk-Wolf 10060002 Redwater 10060003 Poplar 10060004 West Fork Poplar 10060005 Charlie-Little Muddy 10060006 Big Muddy 10060007 Brush Lake closed basin 1007 Upper Yellowstone 100700 Upper Yellowstone 10070001 Yellowstone Headwaters 10070002 Upper Yellowstone 10070003 Shields 10070004 Upper Yellowstone-Lake Basin 10070005 Stillwater 10070006 Clarks Fork Yellowstone 10070007 Upper Yellowstone-Pompeys Pillar 10070008 Pryor 1008 Big Horn 100800 Big Horn 10080001 Upper Wind 10080002 Little Wind 10080003 Popo Agie 10080004 Muskrat 10080005 Lower Wind 10080006 Badwater 10080007 Upper Bighorn 10080008 Nowood 10080009 Greybull 10080010 Big Horn Lake 10080011 Dry 10080012 North Fork Shoshone 10080013 South Fork Shoshone 10080014 Shoshone 10080015 Lower Bighorn 10080016 Little Bighorn 1009 Powder-Tongue 100901 Tongue 10090101 Upper Tongue 10090102 Lower Tongue 100902 Powder 10090201 Middle Fork Powder 10090202 Upper Powder 10090203 South Fork Powder 10090204 Salt 10090205 Crazy Woman 10090206 Clear 10090207 Middle Powder 10090208 Little Powder 10090209 Lower Powder 10090210 Mizpah 1010 Lower Yellowstone 101000 Lower Yellowstone 10100001 Lower Yellowstone-Sunday 10100002 Big Porcupine 10100003 Rosebud 10100004 Lower Yellowstone 10100005 O'fallon 1011 Missouri-Little Missouri 101101 Lake Sakakawea 10110101 Lake Sakakawea 10110102 Little Muddy 101102 Little Missouri 10110201 Upper Little Missouri 10110202 Boxelder 10110203 Middle Little Missouri 10110204 Beaver 10110205 Lower Little Missouri 1012 Cheyenne 101201 Cheyenne 10120101 Antelope 10120102 Dry Fork Cheyenne 10120103 Upper Cheyenne 10120104 Lance 10120105 Lightning 10120106 Angostura Reservoir 10120107 Beaver 10120108 Hat 10120109 Middle Cheyenne-Spring 10120110 Rapid 10120111 Middle Cheyenne-Elk 10120112 Lower Cheyenne 10120113 Cherry 101202 Belle Fourche 10120201 Upper Belle Fourche 10120202 Lower Belle Fourche 10120203 Redwater 1013 Missouri-Oahe 101301 Lake Oahe 10130101 Painted Woods-Square Butte 10130102 Upper Lake Oahe 10130103 Apple 10130104 Beaver 10130105 Lower Lake Oahe 10130106 West Missouri Coteau 101302 Cannonball-Heart-Knife 10130201 Knife 10130202 Upper Heart 10130203 Lower Heart 10130204 Upper Cannonball 10130205 Cedar 10130206 Lower Cannonball 101303 Grand-Moreau 10130301 North Fork Grand 10130302 South Fork Grand 10130303 Grand 10130304 South Fork Moreau 10130305 Upper Moreau 10130306 Lower Moreau 1014 Missouri-White 101401 Fort Randall Reservoir 10140101 Fort Randall Reservoir 10140102 Bad 10140103 Medicine Knoll 10140104 Medicine 10140105 Crow 101402 White 10140201 Upper White 10140202 Middle White 10140203 Little White 10140204 Lower White 1015 Niobrara 101500 Niobrara 10150001 Ponca 10150002 Niobrara Headwaters 10150003 Upper Niobrara 10150004 Middle Niobrara 10150005 Snake 10150006 Keya Paha 10150007 Lower Niobrara 1016 James 101600 James 10160001 James Headwaters 10160002 Pipestem 10160003 Upper James 10160004 Elm 10160005 Mud 10160006 Middle James 10160007 East Missouri Coteau 10160008 Snake 10160009 Turtle 10160010 North Big Sioux Coteau 10160011 Lower James 1017 Missouri-Big Sioux 101701 Lewis and Clark Lake 10170101 Lewis and Clark Lake 10170102 Vermillion 10170103 South Big Sioux Coteau 101702 Big Sioux 10170201 Middle Big Sioux Coteau 10170202 Upper Big Sioux 10170203 Lower Big Sioux 10170204 Rock 1018 North Platte 101800 North Platte 10180001 North Platte Headwaters 10180002 Upper North Platte 10180003 Pathfinder-Seminoe Reservoirs 10180004 Medicine Bow 10180005 Little Medicine Bow 10180006 Sweetwater 10180007 Middle North Platte-Casper 10180008 Glendo Reservoir 10180009 Middle North Platte-Scotts Bluff 10180010 Upper Laramie 10180011 Lower Laramie 10180012 Horse 10180013 Pumpkin 10180014 Lower North Platte 1019 South Platte 101900 South Platte 10190001 South Platte Headwaters 10190002 Upper South Platte 10190003 Middle South Platte-Cherry Creek 10190004 Clear 10190005 St. Vrain 10190006 Big Thompson 10190007 Cache La Poudre 10190008 Lone Tree-Owl 10190009 Crow 10190010 Kiowa 10190011 Bijou 10190012 Middle South Platte-Sterling 10190013 Beaver 10190014 Pawnee 10190015 Upper Lodgepole 10190016 Lower Lodgepole 10190017 Sidney Draw 10190018 Lower South Platte 1020 Platte 102001 Middle Platte 10200101 Middle Platte-Buffalo 10200102 Wood 10200103 Middle Platte-Prairie 102002 Lower Platte 10200201 Lower Platte-Shell 10200202 Lower Platte 10200203 Salt 1021 Loup 102100 Loup 10210001 Upper Middle Loup 10210002 Dismal 10210003 Lower Middle Loup 10210004 South Loup 10210005 Mud 10210006 Upper North Loup 10210007 Lower North Loup 10210008 Calamus 10210009 Loup 10210010 Cedar 1022 Elkhorn 102200 Elkhorn 10220001 Upper Elkhorn 10220002 North Fork Elkhorn 10220003 Lower Elkhorn 10220004 Logan 1023 Missouri-Little Sioux 102300 Missouri-Little Sioux 10230001 Blackbird-Soldier 10230002 Floyd 10230003 Little Sioux 10230004 Monona-Harrison Ditch 10230005 Maple 10230006 Big Papillion-Mosquito 10230007 Boyer 1024 Missouri-Nishnabotna 102400 Missouri-Nishnabotna 10240001 Keg-Weeping Water 10240002 West Nishnabotna 10240003 East Nishnabotna 10240004 Nishnabotna 10240005 Tarkio-Wolf 10240006 Little Nemaha 10240007 South Fork Big Nemaha 10240008 Big Nemaha 10240009 West Nodaway 10240010 Nodaway 10240011 Independence-Sugar 10240012 Platte 10240013 One Hundred and Two 1025 Republican 102500 Republican 10250001 Arikaree 10250002 North Fork Republican 10250003 South Fork Republican 10250004 Upper Republican 10250005 Frenchman 10250006 Stinking Water 10250007 Red Willow 10250008 Medicine 10250009 Harlan County Reservoir 10250010 Upper Sappa 10250011 Lower Sappa 10250012 South Fork Beaver 10250013 Little Beaver 10250014 Beaver 10250015 Prairie Dog 10250016 Middle Republican 10250017 Lower Republican 1026 Smoky Hill 102600 Smoky Hill 10260001 Smoky Hill Headwaters 10260002 North Fork Smoky Hill 10260003 Upper Smoky Hill 10260004 Ladder 10260005 Hackberry 10260006 Middle Smoky Hill 10260007 Big 10260008 Lower Smoky Hill 10260009 Upper Saline 10260010 Lower Saline 10260011 Upper North Fork Solomon 10260012 Lower North Fork Solomon 10260013 Upper South Fork Solomon 10260014 Lower South Fork Solomon 10260015 Solomon 1027 Kansas 102701 Kansas 10270101 Upper Kansas 10270102 Middle Kansas 10270103 Delaware 10270104 Lower Kansas 102702 Big Blue 10270201 Upper Big Blue 10270202 Middle Big Blue 10270203 West Fork Big Blue 10270204 Turkey 10270205 Lower Big Blue 10270206 Upper Little Blue 10270207 Lower Little Blue 1028 Chariton-Grand 102801 Grand 10280101 Upper Grand 10280102 Thompson 10280103 Lower Grand 102802 Chariton 10280201 Upper Chariton 10280202 Lower Chariton 10280203 Little Chariton 1029 Gasconade-Osage 102901 Osage 10290101 Upper Marais Des Cygnes 10290102 Lower Marais Des Cygnes 10290103 Little Osage 10290104 Marmaton 10290105 Harry S. Missouri 10290106 Sac 10290107 Pomme De Terre 10290108 South Grand 10290109 Lake of the Ozarks 10290110 Niangua 10290111 Lower Osage 102902 Gasconade 10290201 Upper Gasconade 10290202 Big Piney 10290203 Lower Gasconade 1030 Lower Missouri 103001 Lower Missouri-Blackwater 10300101 Lower Missouri-Crooked 10300102 Lower Missouri-Moreau 10300103 Lamine 10300104 Blackwater 103002 Lower Missouri 10300200 Lower Missouri 11 Arkansas-White-Red 1101 Upper White 110100 Upper White 11010001 Beaver Reservoir 11010002 James 11010003 Bull Shoals Lake 11010004 Middle White 11010005 Buffalo 11010006 North Fork White 11010007 Upper Black 11010008 Current 11010009 Lower Black 11010010 Spring 11010011 Eleven Point 11010012 Strawberry 11010013 Upper White-Village 11010014 Little Red 1102 Upper Arkansas 110200 Upper Arkansas 11020001 Arkansas Headwaters 11020002 Upper Arkansas 11020003 Fountain 11020004 Chico 11020005 Upper Arkansas-Lake Meredith 11020006 Huerfano 11020007 Apishapa 11020008 Horse 11020009 Upper Arkansas-John Martin 11020010 Purgatoire 11020011 Big Sandy 11020012 Rush 11020013 Two Butte 1103 Middle Arkansas 110300 Middle Arkansas 11030001 Middle Arkansas-Lake Mckinney 11030002 Whitewoman 11030003 Arkansas-Dodge City 11030004 Coon-Pickerel 11030005 Pawnee 11030006 Buckner 11030007 Upper Walnut Creek 11030008 Lower Walnut Creek 11030009 Rattlesnake 11030010 Gar-Peace 11030011 Cow 11030012 Little Arkansas 11030013 Middle Arkansas-Slate 11030014 North Fork Ninnescah 11030015 South Fork Ninnescah 11030016 Ninnescah 11030017 Upper Walnut River 11030018 Lower Walnut River 1104 Upper Cimarron 110400 Upper Cimarron 11040001 Cimarron headwaters 11040002 Upper Cimarron 11040003 North Fork Cimarron 11040004 Sand Arroyo 11040005 Bear 11040006 Upper Cimarron-Liberal 11040007 Crooked 11040008 Upper Cimarron-Bluff 1105 Lower Cimarron 110500 Lower Cimarron 11050001 Lower Cimarron-Eagle Chief 11050002 Lower Cimarron-Skeleton 11050003 Lower Cimarron 1106 Arkansas - Keystone 110600 Arkansas - Keystone 11060001 Kaw Lake 11060002 Upper Salt Fork Arkansas 11060003 Medicine Lodge 11060004 Lower Salt Fork Arkansas 11060005 Chikaskia 11060006 Black Bear-Red Rock 1107 Neosho - Verdigris 110701 Verdigris 11070101 Upper Verdigris 11070102 Fall 11070103 Middle Verdigris 11070104 Elk 11070105 Lower Verdigris 11070106 Caney 11070107 Bird 110702 Neosho 11070201 Neosho headwaters 11070202 Upper Cottonwood 11070203 Lower Cottonwood 11070204 Upper Neosho 11070205 Middle Neosho 11070206 Lake O' the Cherokees 11070207 Spring 11070208 Elk 11070209 Lower Neosho 1108 Upper Canadian 110800 Upper Canadian 11080001 Canadian headwaters 11080002 Cimarron 11080003 Upper Canadian 11080004 Mora 11080005 Conchas 11080006 Upper Canadian-Ute Reservoir 11080007 Ute 11080008 Revuelto 1109 Lower Canadian 110901 Middle Canadian 11090101 Middle Canadian-Trujillo 11090102 Punta De Agua 11090103 Rita Blanca 11090104 Carrizo 11090105 Lake Meredith 11090106 Middle Canadian-Spring 110902 Lower Canadian 11090201 Lower Canadian-Deer 11090202 Lower Canadian-Walnut 11090203 Little 11090204 Lower Canadian 1110 North Canadian 111001 Upper Beaver 11100101 Upper Beaver 11100102 Middle Beaver 11100103 Coldwater 11100104 Palo Duro 111002 Lower Beaver 11100201 Lower Beaver 11100202 Upper Wolf 11100203 Lower Wolf 111003 Lower North Canadian 11100301 Middle North Canadian 11100302 Lower North Canadian 11100303 Deep Fork 1111 Lower Arkansas 111101 Robert S. Kerr Reservoir 11110101 Polecat-Snake 11110102 Dirty-Greenleaf 11110103 Illinois 11110104 Robert S. Kerr Reservoir 11110105 Poteau 111102 Lower Arkansas-Fourche La Fave 11110201 Frog-Mulberry 11110202 Dardanelle Reservoir 11110203 Lake Conway-Point Remove 11110204 Petit Jean 11110205 Cadron 11110206 Fourche La Fave 11110207 Lower Arkansas-Maumelle 1112 Red headwaters 111201 Prairie Dog Town Fork Red 11120101 Tierra Blanca 11120102 Palo Duro 11120103 Upper Prairie Dog Town Fork Red 11120104 Tule 11120105 Lower Prairie Dog Town Fork Red 111202 Salt Fork Red 11120201 Upper Salt Fork Red 11120202 Lower Salt Fork Red 111203 North Fork Red 11120301 Upper North Fork Red 11120302 Middle North Fork Red 11120303 Lower North Fork Red 11120304 Elm Fork Red 1113 Red - Washita 111301 Red-Pease 11130101 Groesbeck-Sandy 11130102 Blue-China 11130103 North Pease 11130104 Middle Pease 11130105 Pease 111302 Red-Lake Texoma 11130201 Farmers-Mud 11130202 Cache 11130203 West Cache 11130204 North Wichita 11130205 South Wichita 11130206 Wichita 11130207 Southern Beaver 11130208 Northern Beaver 11130209 Little Wichita 11130210 Lake Texoma 111303 Washita 11130301 Washita headwaters 11130302 Upper Washita 11130303 Middle Washita 11130304 Lower Washita 1114 Red-Sulphur 111401 Red-Little 11140101 Bois D'arc-Island 11140102 Blue 11140103 Muddy Boggy 11140104 Clear Boggy 11140105 Kiamichi 11140106 Pecan-Waterhole 11140107 Upper Little 11140108 Mountain Fork 11140109 Lower Little 111402 Red-Saline 11140201 Mckinney-Posten Bayous 11140202 Middle Red-Coushatta 11140203 Loggy Bayou 11140204 Red Chute 11140205 Bodcau Bayou 11140206 Bayou Pierre 11140207 Lower Red-Lake Iatt 11140208 Saline Bayou 11140209 Black Lake Bayou 111403 Big Cypress - Sulphur 11140301 Sulphur headwaters 11140302 Lower Sulphur 11140303 White Oak Bayou 11140304 Cross Bayou 11140305 Lake O'the Pines 11140306 Caddo Lake 11140307 Little Cypress 12 Texas-Gulf 1201 Sabine 120100 Sabine 12010001 Upper Sabine 12010002 Middle Sabine 12010003 Lake Fork 12010004 Toledo Bend Reservoir 12010005 Lower Sabine 1202 Neches 120200 Neches 12020001 Upper Neches 12020002 Middle Neches 12020003 Lower Neches 12020004 Upper Angelina 12020005 Lower Angelina 12020006 Village 12020007 Pine Island Bayou 1203 Trinity 120301 Upper Trinity 12030101 Upper West Fork Trinity 12030102 Lower West Fork Trinity 12030103 Elm Fork Trinity 12030104 Denton 12030105 Upper Trinity 12030106 East Fork Trinity 12030107 Cedar 12030108 Richland 12030109 Chambers 120302 Lower Trinity 12030201 Lower Trinity-Tehuacana 12030202 Lower Trinity-Kickapoo 12030203 Lower Trinity 1204 Galveston Bay-San Jacinto 120401 San Jacinto 12040101 West Fork San Jacinto 12040102 Spring 12040103 East Fork San Jacinto 12040104 Buffalo-San Jacinto 120402 Galveston Bay-Sabine Lake 12040201 Sabine Lake 12040202 East Galveston Bay 12040203 North Galveston Bay 12040204 West Galveston Bay 12040205 Austin-Oyster 1205 Brazos headwaters 120500 Brazos headwaters 12050001 Yellow House Draw 12050002 Blackwater Draw 12050003 North Fork Double Mountain Fork 12050004 Double Moutain Fork Brazos 12050005 Running Water Draw 12050006 White 12050007 Salt Fork Brazos 1206 Middle Brazos 120601 Middle Brazos-Clear Fork 12060101 Middle Brazos-Millers 12060102 Upper Clear Fork Brazos 12060103 Paint 12060104 Lower Clear Fork Brazos 12060105 Hubbard 120602 Middle Brazos-Bosque 12060201 Middle Brazos-Palo Pinto 12060202 Middle Brazos-Lake Whitney 12060203 Bosque 12060204 North Bosque 1207 Lower Brazos 120701 Lower Brazos 12070101 Lower Brazos-Little Brazos 12070102 Yegua 12070103 Navasota 12070104 Lower Brazos 120702 Little 12070201 Leon 12070202 Cowhouse 12070203 Lampasas 12070204 Little 12070205 San Gabriel 1208 Upper Colorado 120800 Upper Colorado 12080001 Lost Draw 12080002 Colorado headwaters 12080003 Monument-Seminole Draws 12080004 Mustang Draw 12080005 Johnson Draw 12080006 Sulphur Springs Draw 12080007 Beals 12080008 Upper Colorado 1209 Lower Colorado-San Bernard Coastal 120901 Middle Colorado-Concho 12090101 Middle Colorado-Elm 12090102 South Concho 12090103 Middle Concho 12090104 North Concho 12090105 Concho 12090106 Middle Colorado 12090107 Pecan Bayou 12090108 Jim Ned 12090109 San Saba 12090110 Brady 120902 Middle Colorado-Llano 12090201 Buchanan-Lyndon B 12090202 North Llano 12090203 South Llano 12090204 Llano 12090205 Austin-Travis Lakes 12090206 Pedernales 120903 Lower Colorado 12090301 Lower Colorado-Cummins 12090302 Lower Colorado 120904 San Bernard Coastal 12090401 San Bernard 12090402 East Matagorda Bay 1210 Central Texas Coastal 121001 Lavaca 12100101 Lavaca 12100102 Navidad 121002 Guadalupe 12100201 Upper Guadalupe 12100202 Middle Guadalupe 12100203 San Marcos 12100204 Lower Guadalupe 121003 San Antonio 12100301 Upper San Antonio 12100302 Medina 12100303 Lower San Antonio 12100304 Cibolo 121004 Central Texas Coastal 12100401 Central Matagorda Bay 12100402 West Matagorda Bay 12100403 East San Antonio Bay 12100404 West San Antonio Bay 12100405 Aransas Bay 12100406 Mission 12100407 Aransas 1211 Nueces-Southwestern Texas Coastal 121101 Nueces 12110101 Nueces headwaters 12110102 West Nueces 12110103 Upper Nueces 12110104 Turkey 12110105 Middle Nueces 12110106 Upper Frio 12110107 Hondo 12110108 Lower Frio 12110109 San Miguel 12110110 Atascosa 12110111 Lower Nueces 121102 Southwestern Texas Coastal 12110201 North Corpus Christi Bay 12110202 South Corpus Christi Bay 12110203 North Laguna Madre 12110204 San Fernando 12110205 Baffin Bay 12110206 Palo Blanco 12110207 Central Laguna Madre 12110208 South Laguna Madre 13 Rio Grande 1301 Rio Grande headwaters 130100 Rio Grande headwaters 13010001 Rio Grande headwaters 13010002 Alamosa-Trinchera 13010003 San Luis 13010004 Saguache 13010005 Conejos 1302 Rio Grande-Elephant Butte 130201 Upper Rio Grande 13020101 Upper Rio Grande 13020102 Rio Chama 130202 Rio Grande-Elephant Butte 13020201 Rio Grande-Santa Fe 13020202 Jemez 13020203 Rio Grande-Albuquerque 13020204 Rio Puerco 13020205 Arroyo Chico 13020206 North Plains 13020207 Rio San Jose 13020208 Plains of San Agustin 13020209 Rio Salado 13020210 Jornada Del Muerto 13020211 Elephant Butte Reservoir 1303 Rio Grande-Mimbres 130301 Rio Grande-Caballo 13030101 Caballo 13030102 El Paso-Las Cruces 13030103 Jornada Draw 130302 Mimbres 13030201 Playas Lake 13030202 Mimbres 1304 Rio Grande-Amistad 130401 Rio Grande-Fort Quitman 13040100 Rio Grande-Fort Quitman 130402 Rio Grande-Amistad 13040201 Cibolo-Red Light 13040202 Alamito 13040203 Black Hills-Fresno 13040204 Terlingua 13040205 Big Bend 13040206 Maravillas 13040207 Santiago Draw 13040208 Reagan-Sanderson 13040209 San Francisco 13040210 Lozier Canyon 13040211 Big Canyon 13040212 Amistad Reservoir 130403 Devils 13040301 Upper Devils 13040302 Lower Devils 13040303 Dry Devils 1305 Rio Grande closed basins 130500 Rio Grande closed basins 13050001 Western Estancia 13050002 Eastern Estancia 13050003 Tularosa Valley 13050004 Salt Basin 1306 Upper Pecos 130600 Upper Pecos 13060001 Pecos headwaters 13060002 Pintada Arroyo 13060003 Upper Pecos 13060004 Taiban 13060005 Arroyo Del Macho 13060006 Gallo Arroyo 13060007 Upper Pecos-Long Arroyo 13060008 Rio Hondo 13060009 Rio Felix 13060010 Rio Penasco 13060011 Upper Pecos-Black 1307 Lower Pecos 130700 Lower Pecos 13070001 Lower Pecos-Red Bluff Reservoir 13070002 Delaware 13070003 Toyah 13070004 Salt Draw 13070005 Barrilla Draw 13070006 Coyanosa-Hackberry Draws 13070007 Landreth-Monument Draws 13070008 Lower Pecos 13070009 Tunas 13070010 Independence 13070011 Howard Draw 1308 Rio Grande-Falcon 130800 Rio Grande-Falcon 13080001 Elm-Sycamore 13080002 San Ambrosia-Santa Isabel 13080003 International Falcon Reservoir 1309 Lower Rio Grande 130900 Lower Rio Grande 13090001 Los Olmos 13090002 Lower Rio Grande 14 Upper Colorado 1401 Colorado headwaters 140100 Colorado headwaters 14010001 Colorado headwaters 14010002 Blue 14010003 Eagle 14010004 Roaring Fork 14010005 Colorado headwaters-Plateau 14010006 Parachute-Roan 1402 Gunnison 140200 Gunnison 14020001 East-Taylor 14020002 Upper Gunnison 14020003 Tomichi 14020004 North Fork Gunnison 14020005 Lower Gunnison 14020006 Uncompahange 1403 Upper Colorado-Dolores 140300 Upper Colorado-Dolores 14030001 Westwater Canyon 14030002 Upper Dolores 14030003 San Miguel 14030004 Lower Dolores 14030005 Upper Colorado-Kane Springs 1404 Great Divide - Upper Green 140401 Upper Green 14040101 Upper Green 14040102 New Fork 14040103 Upper Green-Slate 14040104 Big Sandy 14040105 Bitter 14040106 Upper Green-Flaming Gorge Reservoir 14040107 Blacks Fork 14040108 Muddy 14040109 Vermilion 140402 Great Divide closed basin 14040200 Great Divide closed basin 1405 White-Yampa 140500 White - Yampa 14050001 Upper Yampa 14050002 Lower Yampa 14050003 Little Snake 14050004 Muddy 14050005 Upper White 14050006 Piceance-Yellow 14050007 Lower White 1406 Lower Green 140600 Lower Green 14060001 Lower Green-Diamond 14060002 Ashley-Brush 14060003 Duchesne 14060004 Strawberry 14060005 Lower Green-Desolation Canyon 14060006 Willow 14060007 Price 14060008 Lower Green 14060009 San Rafael 1407 Upper Colorado-Dirty Devil 140700 Upper Colorado-Dirty Devil 14070001 Upper Lake Powell 14070002 Muddy 14070003 Fremont 14070004 Dirty Devil 14070005 Escalante 14070006 Lower Lake Powell 14070007 Paria 1408 San Juan 140801 Upper San Juan 14080101 Upper San Juan 14080102 Piedra 14080103 Blanco Canyon 14080104 Animas 14080105 Middle San Juan 14080106 Chaco 14080107 Mancos 140802 Lower San Juan 14080201 Lower San Juan-Four Corners 14080202 Mcelmo 14080203 Montezuma 14080204 Chinle 14080205 Lower San Juan 15 Lower Colorado 1501 Lower Colorado-Lake Mead 150100 Lower Colorado-Lake Mead 15010001 Lower Colorado-Marble Canyon 15010002 Grand Canyon 15010003 Kanab 15010004 Havasu Canyon 15010005 Lake Mead 15010006 Grand Wash 15010007 Hualapai Wash 15010008 Upper Virgin 15010009 Fort Pierce Wash 15010010 Lower Virgin 15010011 White 15010012 Muddy 15010013 Meadow Valley Wash 15010014 Detrital Wash 15010015 Las Vegas Wash 1502 Little Colorado 150200 Little Colorado 15020001 Little Colorado headwaters 15020002 Upper Little Colorado 15020003 Carrizo Wash 15020004 Zuni 15020005 Silver 15020006 Upper Puerco 15020007 Lower Puerco 15020008 Middle Little Colorado 15020009 Leroux Wash 15020010 Chevelon Canyon 15020011 Cottonwood Wash 15020012 Corn-Oraibi 15020013 Polacca Wash 15020014 Jadito Wash 15020015 Canyon Diablo 15020016 Lower Little Colorado 15020017 Dinnebito Wash 15020018 Moenkopi Wash 1503 Lower Colorado 150301 Lower Colorado 15030101 Havasu-Mohave Lakes 15030102 Piute Wash 15030103 Sacramento Wash 15030104 Imperial Reservoir 15030105 Bouse Wash 15030106 Tyson Wash 15030107 Lower Colorado 15030108 Yuma Desert 150302 Bill Williams 15030201 Big Sandy 15030202 Burro 15030203 Santa Maria 15030204 Bill Williams 1504 Upper Gila 150400 Upper Gila 15040001 Upper Gila 15040002 Upper Gila-Mangas 15040003 Animas Valley 15040004 San Francisco 15040005 Upper Gila-San Carlos Reservoir 15040006 San Simon 15040007 San Carlos 1505 Middle Gila 150501 Middle Gila 15050100 Middle Gila 150502 San Pedro-Willcox 15050201 Willcox Playa 15050202 Upper San Pedro 15050203 Lower San Pedro 150503 Santa Cruz 15050301 Upper Santa Cruz 15050302 Rillito 15050303 Lower Santa Cruz 15050304 Brawley Wash 15050305 Aguirre Valley 15050306 Santa Rosa Wash 1506 Salt 150601 Salt 15060101 Black 15060102 White 15060103 Upper Salt 15060104 Carrizo 15060105 Tonto 15060106 Lower Salt 150602 Verde 15060201 Big Chino-Williamson Valley 15060202 Upper Verde 15060203 Lower Verde 1507 Lower Gila 150701 Lower Gila-Agua Fria 15070101 Lower Gila-Painted Rock Reservoir 15070102 Agua Fria 15070103 Hassayampa 15070104 Centennial Wash 150702 Lower Gila 15070201 Lower Gila 15070202 Tenmile Wash 15070203 San Cristobal Wash 1508 Sonora 150801 Rio Sonoyta 15080101 San Simon Wash 15080102 Rio Sonoyta 15080103 Tule Desert 150802 Rio De La Concepcion 15080200 Rio De La Concepcion 150803 Rio De Bavispe 15080301 Whitewater Draw 15080302 San Bernardino Valley 15080303 Cloverdale 16 Great Basin 1601 Bear 160101 Upper Bear 16010101 Upper Bear 16010102 Central Bear 160102 Lower Bear 16010201 Bear Lake 16010202 Middle Bear 16010203 Little Bear-Logan 16010204 Lower Bear-Malad 1602 Great Salt Lake 160201 Weber 16020101 Upper Weber 16020102 Lower Weber 160202 Jordan 16020201 Utah Lake 16020202 Spanish Fork 16020203 Provo 16020204 Jordan 160203 Great Salt Lake 16020301 Hamlin-Snake Valleys 16020302 Pine Valley 16020303 Tule Valley 16020304 Rush-Tooele Valleys 16020305 Skull Valley 16020306 Southern Great Salt Lake Desert 16020307 Pilot-Thousand Springs 16020308 Northern Great Salt Lake Desert 16020309 Curlew Valley 16020310 Great Salt Lake 1603 Escalante Desert-Sevier Lake 160300 Escalante Desert-Sevier Lake 16030001 Upper Sevier 16030002 East Fork Sevier 16030003 Middle Sevier 16030004 San Pitch 16030005 Lower Sevier 16030006 Escalante Desert 16030007 Beaver Bottoms-Upper Beaver 16030008 Lower Beaver 16030009 Sevier Lake 1604 Black Rock Desert-Humboldt 160401 Humboldt 16040101 Upper Humboldt 16040102 North Fork Humboldt 16040103 South Fork Humboldt 16040104 Pine 16040105 Middle Humboldt 16040106 Rock 16040107 Reese 16040108 Lower Humboldt 16040109 Little Humboldt 160402 Black Rock Desert 16040201 Upper Quinn 16040202 Lower Quinn 16040203 Smoke Creek Desert 16040204 Massacre Lake 16040205 Thousand-Virgin 1605 Central Lahontan 160501 Truckee 16050101 Lake Tahoe 16050102 Truckee 16050103 Pyramid-Winnemucca Lakes 16050104 Granite Springs Valley 160502 Carson 16050201 Upper Carson 16050202 Middle Carson 16050203 Carson Desert 160503 Walker 16050301 East Walker 16050302 West Walker 16050303 Walker 16050304 Walker Lake 1606 Central Nevada Desert Basins 160600 Central Nevada Desert Basins 16060001 Dixie Valley 16060002 Gabbs Valley 16060003 Southern Big Smoky Valley 16060004 Northern Big Smoky Valley 16060005 Diamond-Monitor Valleys 16060006 Little Smoky-Newark Valleys 16060007 Long-Ruby Valleys 16060008 Spring-Steptoe Valleys 16060009 Dry Lake Valley 16060010 Fish Lake-Soda Spring Valleys 16060011 Ralston-Stone Cabin Valleys 16060012 Hot Creek-Railroad Valleys 16060013 Cactus-Sarcobatus Flats 16060014 Sand Spring-Tikaboo Valleys 16060015 Ivanpah-Pahrump Valleys 17 Pacific Northwest 1701 Kootenai-Pend Oreille-Spokane 170101 Kootenai 17010101 Upper Kootenai 17010102 Fisher 17010103 Yaak 17010104 Lower Kootenai 17010105 Moyie 170102 Pend Oreille 17010201 Upper Clark Fork 17010202 Flint-Rock 17010203 Blackfoot 17010204 Middle Clark Fork 17010205 Bitterroot 17010206 North Fork Flathead 17010207 Middle Fork Flathead 17010208 Flathead Lake 17010209 South Fork Flathead 17010210 Stillwater 17010211 Swan 17010212 Lower Flathead 17010213 Lower Clark Fork 17010214 Pend Oreille Lake 17010215 Priest 17010216 Pend Oreille 170103 Spokane 17010301 Upper Coeur D'alene 17010302 South Fork Coeur D'alene 17010303 Coeur D'alene Lake 17010304 St. Joe 17010305 Upper Spokane 17010306 Hangman 17010307 Lower Spokane 17010308 Little Spokane 1702 Upper Columbia 170200 Upper Columbia 17020001 Franklin D. Roosevelt Lake 17020002 Kettle 17020003 Colville 17020004 Sanpoil 17020005 Chief Joseph 17020006 Okanogan 17020007 Similkameen 17020008 Methow 17020009 Lake Chelan 17020010 Upper Columbia-Entiat 17020011 Wenatchee 17020012 Moses Coulee 17020013 Upper Crab 17020014 Banks Lake 17020015 Lower Crab 17020016 Upper Columbia-Priest Rapids 1703 Yakima 170300 Yakima 17030001 Upper Yakima 17030002 Naches 17030003 Lower Yakima, Washington 1704 Upper Snake 170401 Snake headwaters 17040101 Snake headwaters 17040102 Gros Ventre 17040103 Greys-Hobock 17040104 Palisades 17040105 Salt 170402 Upper Snake 17040201 Idaho Falls 17040202 Upper Henrys 17040203 Lower Henrys 17040204 Teton 17040205 Willow 17040206 American Falls 17040207 Blackfoot 17040208 Portneuf 17040209 Lake Walcott 17040210 Raft 17040211 Goose 17040212 Upper Snake-Rock 17040213 Salmon Falls 17040214 Beaver-Camas 17040215 Medicine Lodge 17040216 Birch 17040217 Little Lost 17040218 Big Lost 17040219 Big Wood 17040220 Camas 17040221 Little Wood 1705 Middle Snake 170501 Middle Snake-Boise 17050101 C. J. Idaho 17050102 Bruneau 17050103 Middle Snake-Succor 17050104 Upper Owyhee 17050105 South Fork Owyhee 17050106 East Little Owyhee. Nevada, 17050107 Middle Owyhee 17050108 Jordan 17050109 Crooked-Rattlesnake 17050110 Lower Owyhee 17050111 North and Middle Forks Boise 17050112 Boise-Mores 17050113 South Fork Boise 17050114 Lower Boise 17050115 Middle Snake-Payette 17050116 Upper Malheur 17050117 Lower Malheur 17050118 Bully 17050119 Willow 17050120 South Fork Payette 17050121 Middle Fork Payette 17050122 Payette 17050123 North Fork Payette 17050124 Weiser 170502 Middle Snake-Powder 17050201 Brownlee Reservoir 17050202 Burnt 17050203 Powder 1706 Lower Snake 170601 Lower Snake 17060101 Hells Canyon 17060102 Imnaha 17060103 Lower Snake-Asotin 17060104 Upper Grande Ronde 17060105 Wallowa 17060106 Lower Grande Ronde 17060107 Lower Snake-Tucannon 17060108 Palouse 17060109 Rock 17060110 Lower Snake 170602 Salmon 17060201 Upper Salmon 17060202 Pahsimeroi 17060203 Middle Salmon-Panther 17060204 Lemhi 17060205 Upper Middle Fork Salmon 17060206 Lower Middle Fork Salmon 17060207 Middle Salmon-Chamberlain 17060208 South Fork Salmon 17060209 Lower Salmon 17060210 Little Salmon 170603 Clearwater 17060301 Upper Selway 17060302 Lower Selway 17060303 Lochsa 17060304 Middle Fork Clearwater 17060305 South Fork Clearwater 17060306 Clearwater 17060307 Upper North Fork Clearwater 17060308 Lower North Fork Clearwater 1707 Middle Columbia 170701 Middle Columbia 17070101 Middle Columbia-Lake Wallula 17070102 Walla Walla 17070103 Umatilla 17070104 Willow 17070105 Middle Columbia-Hood 17070106 Klickitat 170702 John Day 17070201 Upper John Day 17070202 North Fork John Day 17070203 Middle Fork John Day 17070204 Lower John Day 170703 Deschutes 17070301 Upper Deschutes 17070302 Little Deschutes 17070303 Beaver-South Fork 17070304 Upper Crooked 17070305 Lower Crooked 17070306 Lower Deschutes 17070307 Trout 1708 Lower Columbia 170800 Lower Columbia 17080001 Lower Columbia-Sandy 17080002 Lewis 17080003 Lower Columbia-Clatskanie 17080004 Upper Cowlitz 17080005 Lower Cowlitz 17080006 Lower Columbia 1709 Willamette 170900 Willamette 17090001 Middle Fork Willamette 17090002 Coast Fork Willamette 17090003 Upper Willamette 17090004 Mckenzie 17090005 North Santiam 17090006 South Santiam 17090007 Middle Willamette 17090008 Yamhill 17090009 Molalla-Pudding 17090010 Tualatin 17090011 Clackamas 17090012 Lower Willamette 1710 Oregon-Washington Coastal 171001 Washington Coastal 17100101 Hoh-Quillayute 17100102 Queets-Quinault 17100103 Upper Chehalis 17100104 Lower Chehalis 17100105 Grays Harbor 17100106 Willapa Bay 171002 Northern Oregon Coastal 17100201 Necanicum 17100202 Nehalem 17100203 Wilson-Trask-Nestucca 17100204 Siletz-Yaquina 17100205 Alsea 17100206 Siuslaw 17100207 Siltcoos 171003 Southern Oregon Coastal 17100301 North Umpqua 17100302 South Umpqua 17100303 Umpqua 17100304 Coos 17100305 Coquille 17100306 Sixes 17100307 Upper Rogue 17100308 Middle Rogue 17100309 Applegate 17100310 Lower Rogue 17100311 Illinois 17100312 Chetco 1711 Puget Sound 171100 Puget Sound 17110001 Fraser 17110002 Strait of Georgia 17110003 San Juan Islands 17110004 Nooksack 17110005 Upper Skagit 17110006 Sauk 17110007 Lower Skagit 17110008 Stillaguamish 17110009 Skykomish 17110010 Snoqualmie 17110011 Snohomish 17110012 Lake Washington 17110013 Duwamish 17110014 Puyallup 17110015 Nisqually 17110016 Deschutes 17110017 Skokomish 17110018 Hood Canal 17110019 Puget Sound 17110020 Dungeness-Elwha 17110021 Crescent-Hoko 1712 Oregon closed basins 171200 Oregon closed basins 17120001 Harney-Malheur Lakes 17120002 Silvies 17120003 Donner Und Blitzen 17120004 Silver 17120005 Summer Lake 17120006 Lake Abert 17120007 Warner Lakes 17120008 Guano 17120009 Alvord Lake 18 California 1801 Klamath-Northern California Coastal 180101 Northern California Coastal 18010101 Smith 18010102 Mad-Redwood 18010103 Upper Eel 18010104 Middle Fork Eel 18010105 Lower Eel 18010106 South Fork Eel 18010107 Mattole 18010108 Big-Navarro-Garcia 18010109 Gualala-Salmon 18010110 Russian 18010111 Bodega Bay 180102 Klamath 18010201 Williamson 18010202 Sprague 18010203 Upper Klamath Lake 18010204 Lost 18010205 Butte 18010206 Upper Klamath 18010207 Shasta 18010208 Scott 18010209 Lower Klamath 18010210 Salmon 18010211 Trinity 18010212 South Fork Trinity 1802 Sacramento 180200 Upper Sacramento 18020001 Goose Lake 18020002 Upper Pit 18020003 Lower Pit 18020004 Mccloud 18020005 Sacramento headwaters 180201 Lower Sacramento 18020101 Sacramento-Lower Cow-Lower Clear 18020102 Lower Cottonwood 18020103 Sacramento-Lower Thomes 18020104 Sacramento-Stone Corral 18020105 Lower Butte 18020106 Lower Feather 18020107 Lower Yuba 18020108 Lower Bear 18020109 Lower Sacramento 18020110 Lower Cache 18020111 Lower American 18020112 Sacramento-Upper Clear 18020113 Cottonwood headwaters 18020114 Upper Elder-Upper Thomes 18020115 Upper Stony 18020116 Upper Cache 18020117 Upper Putah 18020118 Upper Cow-Battle 18020119 Mill-Big Chico 18020120 Upper Butte 18020121 North Fork Feather 18020122 East Branch North Fork Feather 18020123 Middle Fork Feather 18020124 Honcut headwaters 18020125 Upper Yuba 18020126 Upper Bear 18020127 Upper Coon-Upper Auburn 18020128 North Fork American 18020129 South Fork American 1803 Tulare-Buena Vista Lakes 180300 Tulare-Buena Vista Lakes 18030001 Upper Kern 18030002 South Fork Kern 18030003 Middle Kern-Upper Tehachapi- 18030004 Upper Poso 18030005 Upper Deer-Upper White 18030006 Upper Tule 18030007 Upper Kaweah 18030008 Mill 18030009 Upper Dry 18030010 Upper King 18030011 Upper Los Gatos-Avenal 18030012 Tulare-Buena Vista Lakes 1804 San Joaquin 180400 San Joaquin 18040001 Middle San Joaquin-Lower 18040002 Middle San Joaquin-Lower 18040003 San Joaquin Delta 18040004 Lower Calaveras-Mormon Slough 18040005 Lower Cosumnes-Lower Mokelumne 18040006 Upper San Joaquin 18040007 Upper Chowchilla-Upper Fresno 18040008 Upper Merced 18040009 Upper Tuolumne 18040010 Upper Stanislaus 18040011 Upper Calaveras 18040012 Upper Mokelumne 18040013 Upper Cosumnes 18040014 Panoche-San Luis Reservoir 1805 San Francisco Bay 180500 San Francisco Bay 18050001 Suisun Bay 18050002 San Pablo Bay 18050003 Coyote 18050004 San Francisco Bay 18050005 Tomales-Drake Bays 18050006 San Francisco Coastal South 1806 Central California Coastal 180600 Central California Coastal 18060001 San Lorenzo-Soquel 18060002 Pajaro 18060003 Carrizo Plain 18060004 Estrella 18060005 Salinas 18060006 Central Coastal 18060007 Cuyama 18060008 Santa Maria 18060009 San Antonio 18060010 Santa Ynez 18060011 Alisal-Elkhorn Sloughs 18060012 Carmel 18060013 Santa Barbara Coastal 18060014 Santa Barbara Channel Islands 1807 Southern California Coastal 180701 Ventura-San Gabriel Coastal 18070101 Ventura 18070102 Santa Clara 18070103 Calleguas 18070104 Santa Monica Bay 18070105 Los Angeles 18070106 San Gabriel 18070107 San Pedro Channel Islands 180702 Santa Ana 18070201 Seal Beach 18070202 San Jacinto 18070203 Santa Ana 18070204 Newport Bay 180703 Laguna-San Diego Coastal 18070301 Aliso-San Onofre 18070302 Santa Margarita 18070303 San Luis Rey-Escondido 18070304 San Diego 18070305 Cottonwood-Tijuana 1808 North Lahontan 180800 North Lahontan 18080001 Surprise Valley 18080002 Madeline Plains 18080003 Honey-Eagle Lakes 1809 Northern Mojave-Mono Lake 180901 Mono-Owens Lakes 18090101 Mono Lake 18090102 Crowley Lake 18090103 Owens Lake 180902 Northern Mojave 18090201 Eureka-Saline Valleys 18090202 Upper Amargosa 18090203 Death Valley-Lower Amargosa 18090204 Panamint Valley 18090205 Indian Wells-Searles Valleys 18090206 Antelope-Fremont Valleys 18090207 Coyote-Cuddeback Lakes 18090208 Mojave 1810 Southern Mojave-Salton Sea 181001 Southern Mojave 18100100 Southern Mojave 181002 Salton Sea 18100200 Salton Sea 19 Alaska 1901 Arctic Slope 190100 Arctic Slope 19010001 East Arctic Slope 19010002 Colville 19010003 West Arctic Slope 1902 Northwest Alaska 190200 Northwest Alaska 19020001 Kotzebue Sound 19020002 Norton Sound-St. Lawrence Island 1903 Yukon 190300 Yukon 19030001 Fortymile-White 19030002 Upper Yukon 19030003 Middle Yukon 19030004 Tanana 19030005 Koyukuk 19030006 Lower Yukon 1904 Southwest Alaska 190400 Southwest Alaska 19040001 Kuskokwim Bay-Nunivak Island-St. Matthew Island 19040002 Bristol Bay 19040003 Aleutian-Pribilof Islands 1905 South Central Alaska 190500 South Central Alaska 19050001 Kodiak-Shelikof 19050002 Cook Inlet 19050003 Gulf of Alaska 1906 Southeast Alaska 190600 Southeast Alaska 19060000 Southeast Alaska 20 Hawaii 2001 Hawaii 200100 Hawaii 20010000 Hawaii 2002 Maui 200200 Maui 20020000 Maui 2003 Kahoolawe 200300 Kahoolawe 20030000 Kahoolawe 2004 Lanai 200400 Lanai 20040000 Lanai 2005 Molokai 200500 Molokai 20050000 Molokai 2006 Oahu 200600 Oahu 20060000 Oahu 2007 Kauai 200700 Kauai 20070000 Kauai 2008 Niihau 200800 Niihau 20080000 Niihau 2009 Northwestern Hawaiian Islands 200900 Northwestern Hawaiian Islands 20090000 Northwestern Hawaiian Islands 21 Caribbean 2101 Puerto Rico 210100 Puerto Rico 21010001 Interior Puerto Rico 21010002 Cibuco-Guajataca 21010003 Culebrinas-Guanajibo 21010004 Southern Puerto Rico 21010005 Eastern Puerto Rico 21010006 Puerto Rican Islands 2102 Virgin Islands 210200 Virgin Islands 21020001 St. John-St. Thomas 21020002 St. Croix 2103 Caribbean Outlying Areas 210300 Caribbean Outlying Areas 21030001 Canal Zone 21030002 Navassa 21030003 Roncador-Serrana |
U.S. Department of the Interior |
U.S. Geological Survey
URL: https://water.usgs.gov/GIS/huc_rdb.html
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