Middle Fork Salmon River: the route, the season and the permits

This is a lottery-permit river. Only two points on the run have coordinates published by the managing agencies — the launch and the take-out — so this map stays deliberately thin rather than pinning rapids from outfitter logs. Dagger Falls sits immediately below the put-in, and the run ends at the Main Salmon confluence just above Cache Bar. Carry the Forest Service river map for rapid-by-rapid detail.

A 104-mile wilderness river trip, typically run in 5 to 7 days.

Parties launch at Boundary Creek launch and take out at Cache Bar Boat Ramp; the route map lists every agency-sourced coordinate in between.

Open the Middle Fork Salmon River route map · compare it with the other nine trips

• Boundary Creek to Cache Bar — the full 104 miles, the standard 6-day trip
• Indian Creek to Cache Bar — ~70 miles, the low-water fly-in option
• Marsh Creek put-in — early-season high-water alternative to Boundary Creek

Best window: Late June – early September.

A float permit is required year-round for every boater on the Middle Fork. During the control season (May 28 – September 3) permits are allocated by competitive lottery through Recreation.gov; outside those dates you self-issue. Confirm the current season dates before applying.

Recreation.gov — Middle Fork of the Salmon permit ↗

Full permit page for this trip

• Class III–IV+ whitewater; some rapids reach Class V at high water
• Cold-water immersion and hypothermia, even in summer
• Log jams and sweepers that shift every runoff
• Wildfire and smoke in mid-to-late summer
• Total remoteness — no road access along the corridor
• Rattlesnakes at riverside camps

Flows are measured at USGS gauge 13309220 (Middle Fork Salmon River near Point of Rocks). The comfortable range for most craft is roughly 2,800–8,000 CFS; above that is expert territory, and below ~1,200 CFS the upper miles turn to rock gardens.

There is no cell coverage anywhere in the corridor. The Indian Creek Ranger Station (river mile ~25) is the only staffed point mid-trip. Carry a satellite messenger and leave a full float plan with your take-out shuttle.

• The Standard · 6 days — Boundary Creek to Cache Bar, 104 miles — all the named rapids, hot springs and riverside camps.
• Low-water fly-in · 5 days — Indian Creek to Cache Bar, ~70 miles, skipping the bony upper miles in September.
• High-water Marsh Creek start · 6 days — Marsh Creek to Cache Bar during snowmelt — the full 104 miles with the bony upper section runnable. Expert whitewater parties only.

Build your own dates in the Middle Fork Salmon River trip planner

Bighorn sheep on the canyon walls, black bears around camps (bear-resistant food storage required), mountain goats, bald eagles and rattlesnakes.

USFS corridor rules require a metal fire pan for every fire, a portable toilet system (groover) for all human waste, and a strainer for gray water. Everything packs out.