White Mountain National Forest · New Hampshire, Maine
Imp
5.9 mi of trail, end to end · native material surface · trail No. 31374 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, bike
Trailhead Imp South Trailhead Drive there
Imp South Trailhead the Forest Service's write-up
This trailhead consists of 2 gravel pullouts about .3 mile apart along NH Route 16. Hikers usually start from the northern pullout, ascending the Imp trail to spectacular views of the Presidential Mountains from atop the Imp Face. This loop day hike descends back to the southern pullout, but there is a well-worn path adjacent to the highway for walking. Hikers can also access the Carter-Moriah Ridge and the Wild River Wilderness by continuing up the North Carter trail where the Imp Trail reaches its apex.
This trailhead on fs.usda.gov
Every trail in White Mountain National Forest
About this trail's facts
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.
