5.4 mi from the trailheadSheridan Lake
Campground

21.6 mi loop · 3,353 ft gain · 4,972 ft high point · Very hard
Loop with Flume, Flume Loop a, Centennial on Mystic, and the Centennial Trail
In Black Hills National Forest · SD · U.S. Forest Service
Centennial Horse Bypass is a 21.6 mi loop to Sheridan Lake in Black Hills National Forest with 3,366 ft of climb.
3,353 ft of gain, the approach both ways included.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
What the trail reaches, measured from the start.
The hike from its start, the approach dashed. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
Campground
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Today: Patchy Fog then Chance Light Rain · wind 6 to 12 mph S