Salmon River (Idaho) plans are under legal challenge. The United States Geological Survey operates four stream gauge water level monitoring stations on the main stem of the Salmon River and 17 others on its tributaries. Real time data is available for each station on the USGS website. For a map of these see or in the box at right. Salmon River (Idaho) The Salmon River is located in Idaho in the northwestern United States. The Salmon is also known as "The River of No Return". It flows for through central Idaho, draining a rugged, thinly populated watershed of and dropping more than between
South Fork Salmon River South Fork Salmon River The South Fork Salmon River is an tributary of the Salmon River in Idaho and Valley Counties in central Idaho. The river drains a rugged, lightly populated wilderness watershed in the Salmon River Mountains. It is the second-largest tributary of the Salmon River, after the Middle Fork. Beginning near Monumental Peak in the Boise National Forest, the river flows generally north to its confluence with the Salmon near Mackay Bar, about above the larger river's mouth on the Snake River. About midway along its course, it is joined by its two main tributaries – the East