Copco Lake residents Francis Gil, left, and Danny Fontaine stand on a dock in May that they have to remove so that Copco Lake can be drained for dam removal. Brandon Swanson / OPB ...

Copco 2 is a diversion dam about a quarter-mile downriver of the larger Copco 1, which impounds Copco Lake east of Yreka in Northern California.

The next big phase of the Klamath River Dam removal started last week. It's the largest dam removal in U.S. history and is expected to last through 2024.

The removal of the four hydroelectric dams — Iron Gate Dam, Copco Dams 1 and 2, and JC Boyle Dam — allows the region’s iconic salmon population to swim freely along the Klamath River and its ...

For the first time in more than a century, salmon will soon have free passage along the Klamath River and its tributaries — a major watershed near the Californi ...

The removal of the four hydroelectric dams — Iron Gate Dam, Copco Dams 1 and 2, and JC Boyle Dam — allows the region’s iconic salmon population to swim freely along the Klamath River and its ...

The removal of the four hydroelectric dams — Iron Gate Dam, Copco Dams 1 and 2, and JC Boyle Dam — allows the region’s iconic salmon population to swim freely along the Klamath River and its ...