South Dakota trails · Snow-4
Snow-4
A 14.9-mile out-and-back in South Dakota, with 1,694 ft of climbing. Reaches Little Spearfish Spring and other spring/viewpoint destinations. Managed by the U.S. Forest Service.
Elevation profile
The climbing is spread fairly evenly along the route.
3-D terrain
USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Reaches
- Little Spearfish Spring (spring)
- Dances with Wolves film site (viewpoint)
Getting there
Roughlock Falls access — parking nearby. 44.35064, -103.94587 · directions
Daylight at the trailhead
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 29.7-mile round trip takes roughly 12 h 42 min, so leaving the trailhead at sunrise puts you back around 6:59 p.m. — 35 min before sunset.
Nearby trails
- Rimrock — 2.6 mi
- Snow-1 — 3.2 mi
- Limestone 100 — 4.2 mi
- Snow-3 — 5.4 mi