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New Hampshire trails · Twinway

Twinway

A 6.5-mile out-and-back in New Hampshire, with 2,436 ft of climbing. Reaches South Twin Mountain and other lake/summit destinations. Managed by the U.S. Forest Service.

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Length
6.5 mi
Elevation gain
2,436 ft
Difficulty
Expert
Max grade
48%
Steepest mile
+1,214 ft
Tread at ≥10% grade
3.4 mi
Shape
out-and-back
Managed by
U.S. Forest Service

Elevation profile

2,451 – 4,882 ft123456

The climbing leans toward the first third: 55% of the ascent falls between mile 0.0 and mile 2.2. It gives back about 1,578 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Twinway

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

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.
Terrain graded T3 (SAC scale) — exposed or hands-on hiking reported on part of this route.

Daylight at the trailhead

On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:30 a.m., the sun rises at 6:59 a.m. and sets at 6:04 p.m., and the last usable light fades about 6:33 p.m. (EDT) — 11 h 05 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 12.9-mile round trip takes roughly 7 h 13 min, so leaving the trailhead at sunrise puts you back around 2:12 p.m. — 3 h 52 min before sunset.

Loop options

Nearby trails