Delaware trails · PennDel/Mason Dixon
A 2.9-mile out-and-back in Delaware, with 228 ft of climbing. Managed by the state.
The climbing leans toward the first third: 46% of the ascent falls between mile 0.0 and mile 1.0. It gives back about 211 ft along the way, so it rolls rather than climbing steadily.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Yorklyn Bridge Trail access — parking nearby. 39.80716, -75.68018 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:01 a.m., the sun rises at 6:29 a.m. and sets at 7:35 p.m., and the last usable light fades about 8:03 p.m. (EDT) — 13 h 07 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 5.9-mile round trip takes roughly 2 h 24 min, so leaving the trailhead at sunrise puts you back around 8:53 a.m. — 10 h 43 min before sunset.