Lower Columbia Tributaries


The lower Columbia River flows 146 miles from Bonneville Dam to the Pacific Ocean. It is arguably the most important reach of the entire Columbia River, nurturing fish and wildlife in the transition from fresh water to salt water, passing through major cities and towns, flowing through wildlife refuges, supporting ports and a shipping channel, and providing valued recreation opportunities.

Native Species

  • Bull Trout
  • Chum Salmon
  • Coastal Cutthroat Trout
  • Coho-salmon
  • Fall-chinook-salmon
  • Pink Salmon
  • Resident Rainbow Trout
  • Sockeye Salmon
  • Spring Chinook Salmon
  • Summer-steelhead
  • Winter-steelhead

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