Middle Fork of the Salmon

About

Float plane access only defines the Middle Fork of the Salmon — 100 miles of Class IV-V drops through the Frank Church-River of No Return Wilderness that earned the 2024 designation as America's most coveted private permit lottery. Running at 2,800 CFS average through optimal flows of 3,000-8,000, the Middle Fork cuts through Custer and Idaho counties in three distinct sections. The upper canyon from Boundary Creek to Indian Creek delivers immediate Class IV-V action past Marble Creek and Velvet Falls. The middle stretch from Indian Creek to Pistol Creek opens into broader valley terrain with Class III-IV water and the trip's best camping. Below Pistol Creek, Impassable Canyon lives up to its name with Class IV-V rapids including the Class V drops at Rubber and Hancock. Commercial outfitters like Middle Fork Rapid Transit and Rocky Mountain River Tours handle logistics for those who draw permits or book guided trips. USGS gauge 13309220 tracks flows on a river where timing matters — too low and you're dragging boats over boulders, too high and the big rapids become genuinely unrunnable.