Lower Cottonwood18020102
Lower CalaverasMormon Slough18040004
Salton Sea18100200
Southern Mojave18100100
Mojave18090208
Tulare-Buena Vista Lakes18030012
Salinas18060005
Lost18010204
Lower Pit18020003
Upper Pit18020002
Trinity18010211
Imperial Reservoir15030104
Santa Ana18070203
Upper King18030010
Santa Clara18070102
San Diego18070304
Truckee16050102Upper Yuba
18020125
Smith18010101
Upper Amargosa18090202
Death Valley-Lower Amargosa
18090203
Lower Eel
18010105
Russian18010110
Honey-Eagle Lakes18080003
Crowley Lake18090102
Warner Lakes17120007
Antelope-Fremont Valleys18090206
Pajaro18060002
Havasu-Mohave Lakes
15030101
Smoke Creek Desert
16040203
Cuyama18060007
Ivanpah-Pahrump Valleys16060015
Owens Lake18090103
LowerKlamath
18010209
Panamint Valley18090204
Illinois17100311
Upper Tuolumne18040009
Mono Lake18090101
Estrella18060004
Upper Kern18030001
Upper Klamath18010206
Lower Sacramento18020109 East Walker
16050301Fish Lake-
Soda Spring Valleys16060010
Upper San Joaquin18040006
Goose Lake18020001
Massacre Lake
16040204
Coyote18050003
Scott18010208
West Walker16050302
Mad-Redwood18010102
Shasta18010207
Santa Ynez18060010
Upper Merced18040008
Eureka-Saline Valleys
18090201
Salmon18010210
Applegate17100309
Indian Wells-Searles Valleys18090205
Sacramento-Stone Corral18020104Upper Cache
18020116
Middle San Joaquin-Lower Chowchilla
18040001
Coyote-Cuddeback Lakes18090207
Central Coastal
18060006
McCloud18020004
Big-Navarro-Garcia
18010108
Upper Eel18010103
Middle Fork Feather18020123
Mill-Big Chico18020119
Upper Carson
16050201
Los Angeles18070105
San Jacinto18070202
North Fork
Feather18020121
Suprise Valley
18080001
Chetco17100312
Butte18010205
San Gabriel
18070106
South Fork Kern
18030002
Upper Stony
18020115
San Pablo Bay18050002
Upper Stanislaus18040010
Upper Kaweah18030007
Santa Maria18060008
Madeline Plains18080002
South Fork Trinity
18010212Mattole
18010107
San Joaquin Delta18040003
Lower Butte
18020105
North Fork American18020128
Lower Feather
18020106
Middle Fork Eel
18010104
Upper Cow-Battle
18020118
South Fork Eel
18010106
San Francisco Bay18050004
Santa Margarita18070302
Lake Tahoe
16050101
Upper Putah
18020117
Upper Mokelumne18040012
Sacramento-Lower Thomes
18020103
South Fork American18020129
Panoche-San Luis Reservoir18040014
Upper Tule18030006
Calleguas18070103
Carrizo Plain
18060003
Middle Kern-Upper Tehachapi-
Grapevine18030003
East Branch North Fork
Feather18020122
Carmel18060012
Upper Bear18020126
San Luis Rey-Escondido18070303
Suisun Bay18050001
Santa Monica Bay18070104
Upper Chowchilla-Upper Fresno
18040007
Aliso-San Onofre18070301
Upper Los Gatos-Avenal
18030011
Ventura18070101
Cottonwood Headwaters18020113
Cottonwood-Tijuana
18070305
Sacra-mento Head-waters
18020005
Gualala-Salmon
18010109
Upper Poso18030004
Upper Calaveras18040011
San Lorenzo-Soquel
18060001
Lower Colorado15030107
Lower American18020111
San Antonio18060009
Upper Butte
18020120
Tomales-Drake Bays18050005
Santa Barbara Coastal18060013
Mill18030008
Upper Deer-Upper White18030005
Bodega Bay18010111
Newport Bay18070204
Sacramento-Lower Cow-Lower Clear18020101
Alisal-Elkhorn Sloughs
18060011
San Francisco Coastal South
18050006
Seal Beach18070201
Santa BarbaraChannel Islands
18060014
San Pedro Channel Islands
18070107
Sacramento-Upper Clear18020112
Upper Elder-Upper Thomes
18020114
HoncutHdwtrs
18020124
Upper Cosumnes18040013
Lower Bear18020108 Upper Coon-
Upper Auburn18020127
Middle San Joaquin-Lower Merced-
Lower Stanislaus18040002
Lower Cosumnes-Lower Mokelumne
18040005
California Subbasins
NV
OR ID
Summer Lake17120005
Guano17120008
Umatilla17070103
Lower John Day17070204
Lost River18010204
Alvord Lake17120009
Silver17120004
Upper Malheur17050116
Sprague18010202
Walla Walla17070102
Umpqua17100303
Lower Deschutes17070306
Warner Lakes17120007
Upper John Day17070201
Mckenzie17090004
Lower Owyhee17050110
Williamson18010201 Jordan
17050108
Powder River17050203
Upper Deschutes17070301
Silvies17120002
Lower Crooked17070305
Upper Rogue17100307
South Umpqua17100302
Upper Willamette17090003
Coquille17100305
Illinois17100311 Middle Owyhee
17050107
Burnt River17050202
Middle Columbia-Hood17070105
Lake Abert17120006
North Umpqua17100301
North Fork John Day17070202
Clackamas17090011
Middle Columbia-Lake Wallula17070101
Willow17070104
Nehalem17100202
South Fork Crooked17070303
Upper Crooked17070304
Siuslaw17100206
Yamhill17090008
Applegate17100309
Willow17050119
Coos17100304
Goose Lake18020001
Lower Grande Ronde17060106
South Santiam17090006
Tualatin17090010
Lower Rogue17100310
Middle Snake-Succor17050103
Trout17070307
Alsea17100205
Wallowa River17060105
Little Deschutes17070302
Brownlee Reservoir17050201
Middle Rogue17100308
Crooked-Rattlesnake17050109
Lower Malheur17050117
Upper Klamath River18010206
Chetco17100312
Upper Grande Ronde River17060104
Middle Fork Willamette17090001
ImnahaRiver
17060102
Bully17050118
Molalla-Pudding17090009
Siletz-Yaquina17100204
Upper Quinn16040201
North Santiam17090005
Smith River18010101
Sixes17100306
Wilson-Trask-Nestucca17100203
DonnerUnd Blitzen17120003
LowerColumbia-Sandy
17080001
LowerWillamette17090012
Harney-Malheur Lakes17120001
MiddleWillamette17090007
HellsCanyon
17060101
Middle Fork John Day17070203
UpperKlamath Lake18010203
Lower Snake-Asotin17060103
Lower Columbia17080006
Lower Columbia-Clatskanie17080003
Coast ForkWillamette17090002
Thousand-Virgin16040205 East Little Owyhee
17050106
South Fork Owyhee17050105
Butte18010205
Lower Klamath River18010209
Middle Snake-Payette17050115
Siltcoos17100207
Necanicum17100201
Oregon Subbasins
StraitOf Georgia17110002
Kitsap17110019
Kitsap17110019
Kitsap17110019
HoodCanal
17110018
Similkameen17020007
Lake Roosevelt17020001
Colville17020003
Pend Oreille17010216
Little Spokane17010308
Lower Spokane17010307
Rock Creek17060109
Hangman17010306
Coeur D'Alene Lake17010303
Upper Spokane17010305
Pend Oreille Lake17010214
Priest17010215
Fraser17110001
Lower Crab17020015
Lower Yakima17030003
Methow17020008
Upper Crab17020013
Palouse River17060108
Okanogan17020006
Upper Yakima17030001
Walla Walla17070102
Entiat17020010
Cowlitz17080005
Klickitat17070106
Upper Skagit17110005
Wenatchee17020011
Naches17030002
Puyallup17110014
Lewis17080002
Chief Joseph17020005
Sanpoil17020004
Middle Columbia-Hood17070105
Willapa17100106
Kettle River17020002
Middle Columbia-Lake Wallula17070101
Upper Chehalis17100103
Hoh-Quillayute17100101
Nooksack17110004
Queets-Quinalt17100102
Skykomish17110009
Nisqually17110015
Sauk17110006
Lake Chelan17020009
Upper Cowlitz17080004
Lower Grande Ronde17060106
Upper Columbia-Priest Rapids17020016
Moses Coulee17020012
Lower Snake-Tucannon17060107
Snoqualmie17110010
Lower Chehalis17100104
Stillaguamish17110008
Banks Lake17020014
Hood Canal17110018
Dungeness-Elwha17110020
Lower Columbia17080006
Lower Snake River17060110
LowerWillamette17090012
LowerColumbia-Sandy
17080001
Kitsap17110019
Similkameen17020007
Duwamish17110013
Lower Skagit17110007
LakeWashington17110012
Lower Snake-Asotin17060103
LowerColumbiaClatskanie17080003
Clearwater17060306
GraysHarbor
17100105
Snohomish17110011
Crescent-Hoko17110021
Skokomish17110017
StraitOf Georgia17110002
Deschutes17110016
San Juan Islands17110003
Washington SubbasinsPuget Sound Marine ZonesNorth SoundStrait of Juan de FucaAdmiralty InletWhidbey BasinHood CanalSouth Sound
Clearwater17060306
Big Lost17040218
St. Joe17010304
Palouse River17060108
Weiser17050124
Upper Salmon17060201
Lemhi17060204
Payette17050122
Lochsa17060303
Burnt River17050202
Little Lost17040217
Rock Creek17060109
Middle Salmon-Panther17060203
Lower Grande Ronde17060106
Lower Selway17060302
Pahsimeroi17060202
Upper Selway17060301
Wallowa River17060105
South Fork Salmon17060208
Hangman17010306
Brownlee Reservoir17050201
Lower Snake-Tucannon17060107
Birch17040216
Middle Salmon-Chamberlain17060207
Lower Malheur17050117
Upper Middle Fork Salmon17060205
South Fork Clearwater17060305
Lower Middle Fork Salmon17060206
Big Wood17040219 Lower Boise
17050114
Upper North Fork Clearwater17060307
Little Salmon17060210
South Fork Payette17050120
Lower Snake-Asotin17060103
Coeur D'Alene Lake17010303
LowerSalmon
17060209
ImnahaRiver
17060102
North ForkPayette
17050123
Boise-Mores17050112
Lower NorthFork Clearwater
17060308
HellsCanyon
17060101
North and Middle Fork Boise17050111
South Fork Boise17050113
North ForkPayette
17050121
Lower Owyhee17050110
Middle Snake-Payette17050115
South Fork Coeur D'Alene17010302
Little Wood17040221
Middle ForkClearwater17060304
Middle Snake-Succor17050103
Lake Walcott17040209
Idaho Subbasins