Salmon-Challis National Forest · Idaho, Montana
Middle Fork
72 mi of trail, end to end · native material surface · trail No. 4001 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, horse
Campgrounds
Along the way Dagger Falls Campground
Begins at the forest's mile 0, 44.4491, -115.2288 - no trailhead mapped Drive to where the trail begins
Marsh Creek Transfer Camp Trailhead the Forest Service's write-up
This trailhead provides access for the Marsh Creek Trail #4237, the Bear Valley-Marsh Creek Trail #4010, and the Middle Fork Trail #001.
This trailhead on fs.usda.gov
Middle Fork Transfer Camp & Trailhead the Forest Service's write-up
Trailhead for the Middle Fork Trail #4001.
Toilet, stock holding facilities and ramp. Long-term parking area.
A few campsites are located in the trees above the parking area, along with picnic tables and fire rings.
This trailhead on fs.usda.gov
Every trail in Salmon-Challis National Forest
About this trail's facts
The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.
