Utah trails · Highline
A 8.1-mile out-and-back in Utah, with 1,337 ft of climbing. Reaches Pigeon Milk Spring and other lake/pass/spring destinations. Managed by the U.S. Forest Service.
Most of the climbing sits in the final third — 71% of the ascent, between mile 5.4 and mile 8.1. It gives back about 765 ft along the way, so it rolls rather than climbing steadily.
HIGHLINE — parking nearby. 40.72370, -110.86496 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:21 a.m., the sun rises at 6:49 a.m. and sets at 7:57 p.m., and the last usable light fades about 8:25 p.m. (MDT) — 13 h 08 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 16.3-mile round trip takes roughly 7 h 22 min, so leaving the trailhead at sunrise puts you back around 2:10 p.m. — 5 h 47 min before sunset.