Ochoco National Forest · Oregon
South Prong
5.5 mi of trail, end to end · native material surface · trail No. 821 · trail class 3 · typical grade 5-8% · tread 12-18 inches wide · hiking, horse, bike
Trailhead South Prong Trailhead Drive there
South Prong Trailhead the Forest Service's write-up
This is a free facility. · reservation required
This trailhead, which is located just north of Mud Springs Horse Camp , provides access into Black Canyon Wilderness via South Prong Trail (#821) .
View a map of Black Canyon Wilderness area trails and trailheads
Restrictions Trailheads are for Day Use only.
This trailhead on fs.usda.gov
Every trail in Ochoco 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.