From ODFW: Salmon disappeared from the Upper Klamath Basin in Oregon almost 100 years ago when Copco Dam in California blocked fish passage upriver.

Today, however, with PacifiCorp’s four large hydroelectric dams up for re-licensing and facing mandatory federal requirements to provide passage to migrating fish, the Oregon Department of Fish and Wildlife is proposing to reintroduce chinook salmon into Upper Klamath Lake and tributaries.

You can download a draft of the Klamath Salmon Reintroduction plan here.