South Dakota trails · Eagle Cliff Bratwurst
A 2.7-mile out-and-back in South Dakota, with 407 ft of climbing. Reaches Deadman Spring and other spring destinations. Managed by the U.S. Forest Service.
Most of the climbing sits in the first third — 60% of the ascent, between mile 0.0 and mile 0.9.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
EAGLE CLIFF / HOLEY ROCK — parking nearby, restroom, water. 44.22953, -103.95202 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:47 a.m., the sun rises at 6:17 a.m. and sets at 7:34 p.m., and the last usable light fades about 8:04 p.m. (MDT) — 13 h 17 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 5.4-mile round trip takes roughly 2 h 24 min, so leaving the trailhead at sunrise puts you back around 8:41 a.m. — 10 h 52 min before sunset.