The Salmon River Mountains are a major mountain range covering most of the central part of the U.S. state of Idaho. The range is over long and its boundaries are usually defined by the Salmon River and its large tributary forks. Part of the central Rocky Mountains, the entire range lies west of the Continental Divide of the Americas and drains to the Snake River. The highest peak is White Mountain, at above sea level. There are five peaks over high, and there are three major subranges defined by other forks of the Salmon River: the West, Central and East Salmon River Mountains.