Utah trails · Under the Rim
A 22.1-mile network in Utah, with 2,191 ft of climbing. Reaches Iron Spring and other arch/spring/viewpoint destinations. Managed by the National Park Service.
The climbing is spread fairly evenly along the route. It gives back about 4,517 ft along the way, so it rolls rather than climbing steadily.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Under the Rim junction — parking nearby. 37.60330, -112.15607 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:30 a.m., the sun rises at 6:57 a.m. and sets at 7:59 p.m., and the last usable light fades about 8:26 p.m. (MDT) — 13 h 02 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 22.1-mile route takes roughly 9 h 18 min, so leaving the trailhead at sunrise puts you back around 4:15 p.m. — 3 h 44 min before sunset.