Salmon-Challis National Forest · Idaho, Montana
Begins at the forest's mile 0, 44.0954, -113.7400 - no trailhead mapped Drive to where the trail begins
This trailhead has minimal development, providing access to Merriam and Pass Lake Trails. One metal fire ring, a picnic table and a two-sided latrine are on site.
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.