Colorado trails · South Lottis Trail
A 10.1-mile out-and-back in Colorado, with 3,017 ft of climbing, topping out at 12,196 ft. Reaches Gunsight Pass and other lake/pass destinations. Managed by USFS Gunnison Ranger District.
The climbing leans toward the middle third: 48% of the ascent falls between mile 3.4 and mile 6.7. It gives back about 2,082 ft along the way, so it rolls rather than climbing steadily.
South Lottis Trailhead — parking nearby. 38.76915, -106.61951 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:07 a.m., the sun rises at 6:34 a.m. and sets at 7:38 p.m., and the last usable light fades about 8:05 p.m. (MDT) — 13 h 04 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 20.1-mile round trip takes roughly 10 h 28 min, so leaving the trailhead at sunrise puts you back around 5:02 p.m. — 2 h 36 min before sunset.