You’d be hard-pressed to find a part of the Pacific Northwest that’s more important than the Columbia River basin. Fed by the mighty Columbia and Snake rivers and their many tributaries that ...

(KOIN) — The Columbia River’s first federally ... protect the threatened and endangered salmon that inhabit the river and its tributaries. In mid-March, Portlanders documented dozens of ...

In 2024, 121,000 adult spring chinook bound for tributaries upstream of Bonneville Dam returned to the Columbia River. That’s a number large enough to provide fisheries but they tended to come ...

The Columbia River, which drains about 244 billion cubic meters of fresh water into the Pacific Ocean from tributaries in Canada, Washington, Idaho and Oregon, does not connect to Southern ...