The Salmon River

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Boating on Idaho’s Salmon River. Called "The River of No Return," the 425-mile Salmon River in Idaho is the longest free flowing river within one state in the contiguous 48 states. The Salmon originates in the Sawtooth and Lemhi Valleys of central and eastern Idaho, and is fed by snows from the Sawtooth and Salmon River Mountains to the south, as well as the Clearwater and Bitterroot Mountains to the north.
The Salmon River runs through the vast Idaho wilderness in the 2nd deepest gorge in North America, 1/5th of a mile deeper than even the Grand Canyon, and for roughly 180 miles the Salmon Canyon is over a mile deep. Needless to say, the trip down The Salmon requires skill, experience and the best equipment.

Permits are required for both float boats and jetboats on the wild section from June 20th through September the 7th. Permits for float boats are distributed via computer lottery in December and January of the previous year. Applications for permits are available from the recreation area’s managing office. Idaho camping along the Salmon River requires strict No Trace procedures.