Last updated: January 26, 2026
Place
Trailhead: Boundary Trail
NPS / Kyle Yarusso
Quick Facts
Boundary Trail runs for about 0.33 miles from Primrose Road NW at the DC/MD border to the Valley Trail / Black Horse Trail.
This neighborhood connector trail is a foot path. It was constructed in 1992 by the Potomac Appalachian Trail Club.
It is primarily a 4-foot-wide native soil trail that widens to 7 feet with gravel tread at the intersection with Grubb/Primrose Road. The majority of the trail has just over 12% grades in a beech/mixed or white oak forest. A few waterbars are located along the steepest segments about halfway through the trail.
This neighborhood connector trail is a foot path. It was constructed in 1992 by the Potomac Appalachian Trail Club.
It is primarily a 4-foot-wide native soil trail that widens to 7 feet with gravel tread at the intersection with Grubb/Primrose Road. The majority of the trail has just over 12% grades in a beech/mixed or white oak forest. A few waterbars are located along the steepest segments about halfway through the trail.