Return of the sockeye salmon

In 1992, a single male sockeye salmon managed to swim 900 miles from the mouth of the Columbia River to Redfish Lake located deep in Idaho’s Sawtooth Mountains---the end of his migratory journey. Biologists dubbed the sole survivor, “Lonesome Larry.”

By 2010, the Northwest Power and Conservation Council happily reported record-setting runs for sockeye —387,000 had climbed the fish ladders at Bonneville Dam. Last year, 751 sockeye were trapped at Redfish Lake Creek and taken to nearby Sawtooth Fish Hatchery.

Sockeye runs to the basin, which is 6,300 ft. above sea level, have fluctuated wildly r...