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California Watershed

Klamath River

The second largest watershed in California.

  • Coho Salmon
  • Bull TroutESA
  • Fall Chinook
  • Resident Rainbow Trout
  • Summer Steelhead
  • Winter Steelhead
  • Lost River Sucker
  • Shortnose Sucker
  • Coastal Cutthroat Trout
  • Chum Salmon
  • Pacific Lamprey

River Stewards

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Watershed Report Card

B

Good

Overall health score: 77/100

77

Data sources: USGS NWIS, EPA ATTAINS, StreamNet, NIFC, US Drought Monitor, NID. Scoring methodology developed by Native Fish Society based on salmonid habitat criteria. Data reviewed 2026.

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Help protect the Klamath River and its wild fish

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