Katahdin Woods and Waters National Monument · Maine

Old Keep Path

3.6 mi of trail, end to end · about 550 ft of climbing · 351 ft–863 ft · trail class Minimally Developed · hiking

352 ft 746 ft · 3.6 mi high 862 ft

On the parks map

All 41 trails in Katahdin Woods and Waters National MonumentFind a trailOn the parks mapPark on nps.gov

About this trail's facts

The lines are the National Park Service's public trails layer, the trailheads and the waterfalls, views, peaks and historic places along them the Service's public points of interest, read 2026-10-16 and simplified for the map; the length is the line's, end to end. The write-ups are the Service's own "things to do" 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 park's own site before you go.