Greenbelt Park · Maryland

Perimeter Trail

5.2 mi of trail, end to end · about 350 ft of climbing · 52 ft–187 ft · native surface · trail class Developed · hiking

Perimeter Trail 5.2 miles the Park Service's write-up

60-120 Minutes · dogs allowed

Start Perimeter trail

Walk the Perimeter Trail through the forest of Greenbelt Park. (5.2 miles)

Park in the Sweetgum Picnic Area, pick up a park brochure (with trail maps and descriptions included in the brochure) and enjoy a 5.2 mile walk through Greenbelt Park. If walking, the Perimeter trail can be accessed at the park entrance.

There is a slight detour at 2.0 mile marker and 3.8 mile marker- Please follow signs- The trail is washed out at 3.2 mile marker.

Accessibility There are water bars across the trails. There are several hills along the Perimeter trail. The trails are four feet wide and difficult terrain along the trail.

This hike on nps.gov

On the parks map

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.