Black Hills National Forest · South Dakota, Wyoming

Old Baldy

4.1 mi of trail, end to end · Old Baldy Trailhead (Trail #66): 5.7 mi loop in the Service's write-up · about 250 ft of climbing · 500 ft of descent · 5,800 ft–6,128 ft · native material surface · trail No. 66 · trail class 3 · typical grade 12-20% · tread 24-36 inches wide · hiking, horse, bike

6,086 ft 5,827 ft · 1.2 mi high 6,100 ft

Trailhead Old Baldy Trailhead (Trail #66) 6,099 ft Drive there

Old Baldy Trailhead (Trail #66) 5.7 mi loop · the Forest Service's write-up

Meandering through stands of quaking aspen, paper birch, and ponderosa pine, colors are beautiful this time of year on the Old Baldy trail. Located approximately 13 miles south of Spearfish, SD off of FSR 134, the Old Baldy Trail is a 5.7 mile loop with a 0.7 mile spur trail to the summit of Old Baldy Mountain.

From the top, one can see Crow Peak to the north, Ragged Top and Terry Peak to the east and Cement Ridge to the west. The Old Baldy Trail is maintained for hikers, horseback riders, bicyclists and cross-country skiers. No motorized use is allowed.

See Old Baldy Trail Brochure: https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5194546.pdf

This trailhead on fs.usda.gov

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Other trails from the Old Baldy Trailhead (Trail #66)

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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.