Great Allegheny Passage

This is the official channel for the Great Allegheny Passage, a spectacular 150-mile nonmotorized path  that soars over valleys, snakes around mountains, and skirts alongside the Casselman River, Youghiogheny River, and Monongahela River on a nearly-level, crushed-limestone surface between Cumberland, Maryland and Pittsburgh. Tracing old footpaths and railroad corridors through the wilderness, it offers glimpses into the country’s westward expansion and industrial might. When paired with the connecting C&O Canal Towpath, it makes long-distance trail travel possible between Pittsburgh and Washington, D.C. 

This page is curated by the Great Allegheny Passage Conservancy, which promotes the GAP and coordinates, strengthens, and supports the efforts of allied partners to ensure a high-quality experience for all those who enjoy it.