Massachusetts trails · Bay Circuit Trail
A 53.7-mile network in Massachusetts, with 417 ft of climbing. Reaches Pierce Hill and other lake/summit destinations. Managed by MassGIS (Bureau of Geographic Information).
The climbing leans toward the middle third: 49% of the ascent falls between mile 17.9 and mile 35.8. It gives back about 1,726 ft along the way, so it rolls rather than climbing steadily.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Bay Circuit Trail access. About 13 min drive (6 mi) from Bridgewater Town. 42.00115, -71.01886 · directions
On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:27 a.m., the sun rises at 6:55 a.m. and sets at 6:04 p.m., and the last usable light fades about 6:32 p.m. (EDT) — 11 h 09 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 53.7-mile route works out to roughly 20 h 05 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.