Pennsylvania trails · Trexler Nature Preserve Trails
A 24.5-mile point-to-point in Pennsylvania, with 356 ft of climbing. Reaches Mill Hill and other summit destinations. Managed by County Parish Borough.
The climbing is spread fairly evenly along the route. It gives back about 3,449 ft along the way, so it rolls rather than climbing steadily.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Trexler Nature Preserve Trails junction. About 30 min drive (15 mi) from Allentown. 40.66244, -75.63720 · directions
On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:44 a.m., the sun rises at 7:12 a.m. and sets at 6:24 p.m., and the last usable light fades about 6:51 p.m. (EDT) — 11 h 12 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 24.5-mile route takes roughly 9 h 15 min, so leaving the trailhead at sunrise puts you back around 4:27 p.m. — 1 h 57 min before sunset.