Colville National Forest · Washington
Begins at the forest's mile 0, 48.7084, -118.8320 - no trailhead mapped Drive to where the trail begins
The 9 mile Clackamas Trail is part of the Pacific Northwest National Scenic Trail . The trail travels up to Clackamas Mountain from the Sweat Creek Picnic Area with great views to the west. The trail then traverses down the north side to Cougar Creek and connects to the Cougar Creek #100 road.
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.