White Mountain National Forest · New Hampshire, Maine
Trailhead Carter Ledge Trailhead Drive there
Please use the day use parking area and DO NOT BLOCK campsites with hiker vehicles. The trail accesses Middle Sister (3,340 ft.) and reaches the summit via Middle Sister Trail at 3.6 miles with 2000 feet of elevation gain.
The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.