The river turns abruptly north at the confluence with the Little Salmon River at Riggins, about 87 miles (140 km) above its mouth. From there the river flows almost due north, with U.S. Route 95 on its east bank until a few miles before White Bird; the river then loops northwest and south to its confluence with the Snake River north of Hells Canyon, 15 miles (25 km) south of the Washington border and 40 miles (65 km) south of Lewiston. The Salmon River is the longest river system contained entirely within a single U.S. state.
where does the salmon river meet the snake river
north of Hells Canyon, 15 miles (25 km) south of the Washington border and 40 miles (65 km) south of Lewiston