from The American Heritage® Dictionary of the English Language, 4th Edition

  • A river of central Idaho rising in the Salmon River Mountains and flowing about 684 km (425 mi) to the Snake River. The mountain range rises to 3,153.7 m (10,340 ft) at Twin Peaks.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a tributary of the Snake River in Idaho


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  • Originally named Louis's River by Wm. Clark of the Lewis and Clark expedition, and colloquially known as "The River of No Return". The Salmon River basin contains most (up to 70 percent) of the remaining salmon and steelhead habitat in the Columbia River Basin. It is purportedly the longest (425 miles) undammed western river in the US. The Salmon River becomes the dividing line for the two time zones in Idaho, Moutain time, and Pacific time.

    December 23, 2010