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Connecticut trails · Old Furnace Trail

Old Furnace Trail

A 2.2-mile network in Connecticut, with 230 ft of climbing. Reaches Half Hill and other lake/summit destinations. Managed by the state.

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Length
2.2 mi
Elevation gain
230 ft
Difficulty
Easy
Max grade
20%
Steepest mile
+230 ft
Tread at ≥10% grade
0.3 mi
Shape
network
Bikes
no
Horses
no
Managed by
State

Elevation profile

311 – 541 ft12

The climbing leans toward the middle third: 48% of the ascent falls between mile 0.7 and mile 1.5. It gives back about 187 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Old Furnace Trail

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.

Getting there

Old Furnace Trail access. 41.76998, -71.87108 · directions

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:43 a.m., the sun rises at 6:11 a.m. and sets at 7:22 p.m., and the last usable light fades about 7:51 p.m. (EDT) — 13 h 11 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 2.2-mile route takes roughly 56 min, so leaving the trailhead at sunrise puts you back around 7:07 a.m. — 12 h 15 min before sunset.

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