Utah trails · Birch Spring-Pass Creek Loop
A 19.8-mile out-and-back in Utah, with 1,088 ft of climbing. Reaches Lake Hollow Spring and other lake/pass/spring destinations. Managed by the U.S. Forest Service.
Most of the climbing sits in the final third — 61% of the ascent, between mile 13.2 and mile 19.8. It gives back about 1,206 ft along the way, so it rolls rather than climbing steadily.
Birch Spring-Pass Creek Loop access — parking nearby. 37.67199, -112.66728 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:32 a.m., the sun rises at 6:59 a.m. and sets at 8:01 p.m., and the last usable light fades about 8:28 p.m. (MDT) — 13 h 02 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 39.6-mile round trip works out to roughly 15 h 46 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.