The host recalls kneeling at a Klamath tributary so thick with spawning salmon that open water for a cup was hard to find, beside a farm abandoned because a new dam was about to flood the valley. Years later the creek lay under a reservoir. That memory opens a history of why the West dammed its salmon rivers, and of a river lost and, improbably, regained.
The episode rests on a childhood memory that cannot be independently verified. Sources also give slightly different years for Iron Gate Dam, and the runs' decline had several causes beyond the dams.