Course
The headwaters of the Salmon River are in the mountains of central and eastern Idaho (Lemhi Range, Sawtooth, Salmon River Mountains, Clearwater and Bitterroot Range). The main fork of the Salmon is joined by the Yankee Fork, East Fork, Pahsimeroi, Lemhi, North Fork, Middle Fork, South Fork, and Little Salmon Rivers before emptying into the Snake River on the Oregon-Idaho border, north of Hells Canyon, 15 miles (24 km) south of Washington and 40 miles (64 km) south of Lewiston. The Middle Fork of the Salmon River is one of the premier recreational rafting and kayaking rivers in the world.
Ten miles (16 km) downstream (west) of its confluence with the Middle Fork, the Salmon River becomes the dividing line for the two time zones in Idaho: Mountain time to the south, Pacific time to the north, bisecting the state at approximately 45.5 degrees north latitude.
Read more about this topic: Salmon River (Idaho)