7.6 mi of trail, end to end · about 2,800 ft of climbing · 2,101 ft–4,855 ft · native material surface · trail No. 1178 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, horse, bike
Summit Lake Trailhead the Forest Service's write-up
$5/vehicle/day
Provides access to : Summit Lake Trail 1177 which accesses Carbon and Bearhead Trails 1179 / 1179.1 , Clearwater Trail 1178 . All of these trails are within Clearwater Wilderness.
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.
