Allegheny Mountain Trail

Allegheny Mountain Trail (Forest Trail 532; ref TR 532) is a long ridge hike on Allegheny Mountain in Monongahela National Forest near Seneca Rocks. The route runs through hardwood forest and several small clearings, with blue-blazed tread marking the corridor.

Expect a mix of doubletrack-to-singletrack character rather than technical trail construction. Much of the route is very wide for most of its length because portions have been used by authorized vehicles to reach wildlife management plots and to cross a gas pipeline at the northern end.

Roughly from the start until near the Spring Ridge Trail (TR561) junction, the trail is comparatively flat and can be grassy and muddy. After Spring Ridge, the trail becomes more defined as singletrack and grade starts to drop.

About 8 miles into the hike, the tread turns downhill for the majority—good for moving efficiently if you’re prepared for sustained descent. This long length is what drives the “moderate” difficulty for many hikers, even where the walking is relatively non-technical.

A practical way to run it is with a vehicle shuttle, since it’s point-to-point. One commonly used plan uses the Spring Ridge Trail (TR561) and/or Horton Trail (TR530) for a second pickup option rather than attempting to loop back to your car.

South trailhead access is via Briery Gap Run Rd / FR 112 from Seneca Rocks, while the north trailhead is reached via Whites Run Rd from Seneca Rocks on Route 33. Bring drinking water and treat what you collect from streams and springs; camping and open campfires are prohibited within 300 feet of Forest Roads.

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