Colorado trails · Stoner Mesa Trail
A 11.4-mile out-and-back in Colorado, with 2,377 ft of climbing, topping out at 9,935 ft. Reaches Michele Reservoir and other lake/spring/summit destinations. Managed by USFS Dolores Ranger District.
Most of the climbing sits in the first third — 62% of the ascent, between mile 0.0 and mile 3.8. It climbs almost continuously, with little descent to recover on.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Stoner Mesa Trailhead Upper. 37.69699, -108.19523 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:14 a.m., the sun rises at 6:41 a.m. and sets at 7:43 p.m., and the last usable light fades about 8:10 p.m. (MDT) — 13 h 02 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 22.7-mile round trip takes roughly 10 h 48 min, so leaving the trailhead at sunrise puts you back around 5:29 p.m. — 2 h 14 min before sunset.