Hatchery or not, that run did not come back because they planted that many more smolts 4 years before. And hatchery or not, ALL salmon and steelhead have to cross the same number of dams. Granted, a lot of the main river channel in the Snake is no longer spawning ground as it once was. But, the Salmon River is pristine spawning territory and guess what, NO FISH. Where did those pesky fish go!?! Hmmmm!?! Must be the dams...hehehe