Alpine County Rivers
Name (# of Reports) Last Update Location
East Carson River (CA) [ESFR] (252) 4-18-2024 Markleeville, CA
Stanislaus River - Clarks Fork - Alpine County (3) 10-6-2023 Alpine County, CA
West Carson River (CA) [ESFR] (214) 4-18-2024 Woodfords, CA
 

Amador County Rivers
Name (# of Reports) Last Update Location
Mokelumne River (1) 11-8-2018 CA
 

Butte County Rivers
Name (# of Reports) Last Update Location
Feather River (373) 7-27-2023 Oroville, CA
Feather River - North Fork (7) 3-29-2022 Oroville, CA
 

Calaveras County Rivers
Name (# of Reports) Last Update Location
Calaveras River (3) 3-22-2021 CA
Stanislaus River - North Fork (42) 11-7-2023 Bear Valley, CA
 

Colusa County Rivers
Name (# of Reports) Last Update Location
Sacramento River - Colusa (15) 4-2-2024 Colusa, CA
Sacramento River - Grimes (2) 2-4-2022 Grimes, CA
 

Contra Costa County Rivers
Name (# of Reports) Last Update Location
San Joaquin River - Oakley (24) 4-20-2024 Oakley
San Joaquin River- Antioch (8) 5-24-2022 Antioch, CA
 

Del Norte County Rivers
Name (# of Reports) Last Update Location
Smith River (369) 4-19-2024 Smith River, CA
Winchuck River (21) 6-7-2023 OR
 

El Dorado County Rivers
Name (# of Reports) Last Update Location
American River (136) 6-25-2020 Sacramento, CA
American River - Silver Fork (1) 10-3-2016 Kyburz, CA
 

Fresno County Rivers
Name (# of Reports) Last Update Location
San Joaquin River (243) 8-13-2023 Stockton, CA
San Joaquin River - South Fork (1) 12-22-2016 Fresno County, CA
 

Humboldt County Rivers
Name (# of Reports) Last Update Location
Eel River (255) 4-19-2024 Fortuna, CA
Eel River - South Fork (110) 3-21-2024 CA
Klamath River - Lower (105) 1-11-2024 Klamath, CA
Mad River (201) 3-21-2024 Arcata, CA
Mattole River (1) 12-17-2015 Patrolia, CA
Trinity River (626) 4-11-2024 Douglas City, CA
Van Duzen River (150) 3-21-2024 Bridgeville, CA
 

Lake County Rivers
Name (# of Reports) Last Update Location
Eel River (255) 4-19-2024 Fortuna, CA
 

Lassen County Rivers
Name (# of Reports) Last Update Location
Susan River - Lower (1) 4-17-2017 Susanville, CA
 

Madera County Rivers
Name (# of Reports) Last Update Location
San Joaquin River (243) 8-13-2023 Stockton, CA
 

Mariposa County Rivers
Name (# of Reports) Last Update Location
Merced River (1) 6-6-2018 CA
Merced River - South Fork - Hite Cove (1) 4-11-2017 Mariposa County, CA
 

Mendocino County Rivers
Name (# of Reports) Last Update Location
Eel River (255) 4-19-2024 Fortuna, CA
Eel River - South Fork (110) 3-21-2024 CA
Gualala River (45) 4-15-2022  
Russian River (188) 3-21-2024 Guerneville, CA
Russian River - East Branch (2) 7-9-2018 Redwood Valley, CA
 

Merced County Rivers
Name (# of Reports) Last Update Location
Merced River (1) 6-6-2018 CA
 

Modoc County Rivers
Name (# of Reports) Last Update Location
Klamath River - Middle (120) 11-3-2023  
Lost River (5) 1-31-2024 Bonanza, OR
Pit River (333) 4-11-2024 CA
 

Mono County Rivers
Name (# of Reports) Last Update Location
East Walker River [ESFR] (11) 8-11-2023  
East Walker River (CA) [ESFR] (4284) 4-14-2024 Bridgeport, CA
Little Walker River [ESFR] (3) 6-18-2022 Sonora Pass, CA
Owens River [ESFR] (813) 3-14-2022 CA
Owens River - Section 3 - Upper (above Crowley) [ESFR] (304) 4-6-2024 Eastern Sierra, CA
West Walker River (CA) [ESFR] (255) 4-22-2024 Walker, CA
West Walker River (Section 2) [ESFR] (183) 4-10-2016 Walker, CA
 

Monterey County Rivers
Name (# of Reports) Last Update Location
Carmel River (3) 10-24-2022 Carmel, CA
 

Napa County Rivers
Name (# of Reports) Last Update Location
Napa River (50) 3-17-2016 Napa, CA
 

Nevada County Rivers
Name (# of Reports) Last Update Location
Truckee River (1176) 4-19-2024  
Truckee River- Hirschdale (5) 1-19-2023 Truckee, CA
 

Placer County Rivers
Name (# of Reports) Last Update Location
Truckee River (1176) 4-19-2024  
 

Plumas County Rivers
Name (# of Reports) Last Update Location
Feather River - Middle Fork - Graeagle (11) 3-31-2021 Graeagle, CA
Feather River - North Fork (7) 3-29-2022 Oroville, CA
Feather River - North Fork - Belden (3) 12-7-2021 Bleden, CA
 

Sacramento County Rivers
Name (# of Reports) Last Update Location
American River - Nimbus Hatcery (2) 2-28-2018 Gold River, CA
Sacramento River (1387) 4-22-2024 CA
Sacramento River - Freeport (2) 7-25-2016 Freeport, CA
Sacramento River - Garcia Bend (3) 9-30-2016 Sacramento, CA
Sacramento River - Sacramento (8) 6-9-2023 Sacramento, CA
 

San Joaquin County Rivers
Name (# of Reports) Last Update Location
Mokelumne River (1) 11-8-2018 CA
Old River (3) 11-6-2021 Tracy, CA
San Joaquin River (243) 8-13-2023 Stockton, CA
San Joaquin River - Mokelumne Mouth (106) 11-12-2022 Isleton, CA
 

Santa Cruz County Rivers
Name (# of Reports) Last Update Location
San Lorenzo River (12) 3-13-2024 Santa Cruz, CA
 

Shasta County Rivers
Name (# of Reports) Last Update Location
Fall River (54) 4-3-2024 Fall River Mills, CA
Sacramento River (1387) 4-22-2024 CA
Sacramento River - Barge Hole (5) 9-5-2023 CA
Sacramento River - Lower (1227) 4-17-2024 Redding, CA
Sacramento River - Upper (42) 4-11-2024 Shasta, CA
 

Sierra County Rivers
Name (# of Reports) Last Update Location
Little Truckee River (286) 4-19-2024 CA
Truckee River (1176) 4-19-2024  
Yuba River - North Fork (2) 5-17-2023 Downieville, CA
 

Siskiyou County Rivers
Name (# of Reports) Last Update Location
Applegate River (169) 3-20-2024 Applegate, OR
Klamath River - Middle (120) 11-3-2023  
Klamath River - Upper - CA (828) 4-18-2024 Hornbrook, CA
Lost River (5) 1-31-2024 Bonanza, OR
McCloud River (287) 4-11-2024 CA
Sacramento River (1387) 4-22-2024 CA
Sacramento River - Upper (264) 3-21-2024 Siskiyou, CA
 

Solano County Rivers
Name (# of Reports) Last Update Location
Napa River (50) 3-17-2016 Napa, CA
Rancho Del Dios (1) 3-20-2007 CA
Sacramento River - Rio Vista (20) 4-16-2022 Rio Vista, CA
 

Sonoma County Rivers
Name (# of Reports) Last Update Location
Gualala River (45) 4-15-2022  
Russian River (188) 3-21-2024 Guerneville, CA
 

Stanislaus County Rivers
Name (# of Reports) Last Update Location
Stanislaus River (34) 2-19-2024 CA
 

Sutter County Rivers
Name (# of Reports) Last Update Location
Feather River (373) 7-27-2023 Oroville, CA
 

Tehama County Rivers
Name (# of Reports) Last Update Location
Sacramento River - Red Bluff (17) 9-4-2020 Red Bluff, CA
Sacramento River - Woodson Bridge (1) 8-12-2020 Corning, CA
 

Trinity County Rivers
Name (# of Reports) Last Update Location
Eel River (255) 4-19-2024 Fortuna, CA
Klamath River - Middle (120) 11-3-2023  
Mad River (201) 3-21-2024 Arcata, CA
Trinity River (626) 4-11-2024 Douglas City, CA
Trinity River - Above Clair Engle Lake (1) 6-22-2017 Whiskeytown Lake, CA
Trinity River - Stuart Fork (1) 3-6-2017 Trinity Lake, CA
Trinity River - Upper (39) 2-12-2024 Lewiston, CA
Van Duzen River (150) 3-21-2024 Bridgeville, CA
 

Tulare County Rivers
Name (# of Reports) Last Update Location
Kern River (139) 4-19-2024  
 

Tuolumne County Rivers
Name (# of Reports) Last Update Location
Stanislaus River (34) 2-19-2024 CA
Stanislaus River - Middle Fork (1) 11-12-2021 Tuolumne County, CA
Stanislaus River - North Fork (42) 11-7-2023 Bear Valley, CA
Tuolumne River (1) 3-12-2017 CA
Tuolumne River - North Fork (1) 11-29-2016 Tuolumne County, CA
 

Yuba County Rivers
Name (# of Reports) Last Update Location
Feather River (373) 7-27-2023 Oroville, CA
Yuba River - Upper (1) 3-13-2016 Donner Summit, CA