Chinook salmon on the Klamath River made it all the way to the river's headwaters in southern Oregon some 300 miles from the Pacific for the first time in over a century.

KLAMATH FALLS, Ore. — Video captured a Chinook salmon successfully summiting the fish ladder at an upper Klamath River dam this week, according to the Oregon Department of Fish and Wildlife — the ...

As salmon and steelhead swim upstream, they’re now facing one more challenge in fish ladders. It’s a non-native fish competing for space: the American shad. At Lower Granite Dam on the Lower Snake ...

The fish had been missing from the headwaters of the Klamath River for more than a century. Just a year after the removal of ...

A salmon passed through the fish ladder of a key dam on the upper Klamath River on Sept. 24, in what wildlife officials hope is a sign of the iconic fish repopulating ever-greater stretches of the ...

BONNEVILLE DAM — The U.S. Army Corps of Engineers is gutting and rebuilding a large section of Bonneville Dam’s fish ladder to make it easier for Pacific lamprey to pass the dam as they return from ...

As soon as it rains, coho salmon likely will swim up a small creek to a spawning ground in the west Sonoma County hills that has been impassable to the species for decades. When they come to the ...

BONNEVILLE DAM, Columbia River, Wash. — There is a new king of the Columbia. Each spring, a chrome tide of fish native to the East Coast floods the Northwest’s mightiest river by the millions. Shad, ...