Utah trails · Poison Creek Atv Trail
A 11.6-mile out-and-back in Utah, with 2,910 ft of climbing. Reaches Poison Creek Reservoir Number 1 and other lake/spring destinations. Managed by the U.S. Forest Service.
Most of the climbing sits in the first third — 69% of the ascent, between mile 0.0 and mile 3.9. It climbs almost continuously, with little descent to recover on.
CLAYTON TRAILHEAD — parking nearby, restroom, water. 37.96902, -111.83273 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:29 a.m., the sun rises at 6:56 a.m. and sets at 7:58 p.m., and the last usable light fades about 8:25 p.m. (MDT) — 13 h 02 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 23.1-mile round trip takes roughly 11 h 29 min, so leaving the trailhead at sunrise puts you back around 6:24 p.m. — 1 h 34 min before sunset.