Texas trails · Chimneys
A 7.5-mile out-and-back in Texas, with 836 ft of climbing. Reaches The Chimneys and other arch/spring destinations. Managed by the National Park Service.
The climbing leans toward the final third: 47% of the ascent falls between mile 5.0 and mile 7.6. It climbs almost continuously, with little descent to recover on.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Chimneys access — parking nearby. 29.20574, -103.42352 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 7:06 a.m., the sun rises at 7:30 a.m. and sets at 8:16 p.m., and the last usable light fades about 8:41 p.m. (CDT) — 12 h 46 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 15.1-mile round trip takes roughly 6 h 26 min, so leaving the trailhead at sunrise puts you back around 1:56 p.m. — 6 h 20 min before sunset.