Klamath National Forest · California
Campgrounds
Along the way Sulphur Springs Campground
Trailhead Sulphur Springs Trailhead Drive there
A trailhead accessible by 2WD and low-clearance vehicles for the Kelsey National Recreational Trail and the west side of the Marble Mountain Wilderness. Trail connects to the Norcross Trailhead and Elk Creek, as well as the Bear Lake Trailhead into Bear Valley and crossing the Pacific Crest Trail.
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.