I would vote for a strong hatchery program. In Eastern Wa. they have such a thing and people fish for steelhead from July @ Drano Lake through through January @ Ice Harbor Dam. What they do is follow the fish as they slowly make their way to the Dworsak National Fish Hatchery and other hatcheries on the Grande Rhonde and Salmon Rivers. Some hard-cores over there catch 150 or more steelhead a year. They have fun.