A December report from the Northwest Power and Conservation Council shows a rolling 10-year average return of 2.3 million adult salmon and steelhead to the Columbia River Basin annually, higher than ...

The construction of the hydrosystem throughout the Columbia River Basin cut off almost 50% of all available habitat across the region until some fish passages were built, according to Patty O ...

The construction of the hydrosystem throughout the Columbia River Basin cut off almost 50% of all available habitat across the region until some fish passages were built, according to Patty O ...