Description for the Clearwater River (Lower)This section covers the Clearwater from the mouth at Lewiston to the Orofino bridge.
The Clearwater River in north central Idaho runs from the Bitterroot Mountains to the city of Lewiston where it flows into the Snake River. The Clearwater is the largest tributary of the Snake River though the river is considered small to medium sized. The river is clear and shallow in many places. The flows fluctuate naturally and from outflows of Dworshak Dam which dams the river's northern fork. The river is one of the top steelhead waters in all of the Northwest. The steelhead fish in this river are both hatchery produced and from natural breeding wild fish. The river is famous for its prize "B-Run" steelhead. Though the early returning "A-Run" fish tend to be smaller, the later "B" run that arrives around October draws fishermen from all over the world. After spending two years in the ocean, these "B-Run" fish average 10-15 pounds and many of these trophies can weigh more than 20 pounds.