Great Allegheny Passage

Great Allegheny Passage
Length	150 mi (240 km)
Location	Western Pennsylvania and Maryland
Designation	National Recreation Trail USBR 50[1][2]
Trailheads	Cumberland, Maryland 39°38′55″N 78°45′44″W / 39.64863°N 78.76210°W / 39.64863; -78.76210 Pittsburgh, Pennsylvania 40°26′06″N 79°59′46″W / 40.43504°N 79.99611°W / 40.43504; -79.99611
Use	Hiking, cycling
Elevation change	western: 1,066 feet (325 m); eastern 1,786 feet (544 m)
Highest point	Eastern Continental Divide just east of Deal, Pennsylvania, 2,392 ft (729 m)
Lowest point	east end: 606 feet (185 m) at Cumberland, Maryland; west end: 720 feet (220 m) at Point State Park, Pittsburgh, Pennsylvania
Grade	2% maximum
Difficulty	Easy
Hazards	Severe weather, Traffic (Pittsburgh)
Surface	Crushed limestone
Right of way	Baltimore and Ohio Railroad Pittsburgh and Lake Erie Railroad Union Railroad Western Maryland Railway
Trail map Legend 147.7 mi 237.7 km Point State Park 145.3 mi 233.8 km Hot Metal Bridge 144.2 mi 232.1 km Pittsburgh 140.5 mi 226.1 km Homestead 134.1 mi 215.8 km Riverton Bridge 129.2 mi 207.9 km Dead Man's Hollow to Montour Trail 132.5 mi 213.2 km McKeesport 128.2 mi 206.3 km Boston 122.6 mi 197.3 km Dravo Cemetery 114.1 mi 183.6 km West Newton 102.2 mi 164.5 km Perryopolis 88.8 mi 142.9 km Connellsville to Laurel Highlands Hiking Trail 71.9 mi 115.7 km Ohiopyle 61.6 mi 99.1 km Confluence 52.1 mi 83.8 km Pinkerton High Bridge 51.9 mi 83.5 km Pinkerton Tunnel 51.7 mi 83.2 km Pinkerton Low Bridge 43.8 mi 70.5 km Rockwood 36.5 mi 58.7 km Garrett 33.7 mi 54.2 km Salisbury Viaduct 31.9 mi 51.3 km Meyersdale 30.3 mi 48.8 km Bollman Bridge 29.8 mi 48 km Keystone Viaduct 23.7 mi 38.1 km Eastern Continental Divide 22.0 mi 35.4 km Big Savage Tunnel 20.5 mi 33 km Mason–Dixon line PA MD 17.9 mi 28.8 km Borden Tunnel 15.5 mi 24.9 km Frostburg 6.5 mi 10.5 km Brush Tunnel 0 mi Cumberland Chesapeake and Ohio Canal Towpath to Washington, D.C. This diagram: view talk edit

The Great Allegheny Passage (GAP) is a 150-mile (240 km) rail trail between Pittsburgh, Pennsylvania and Cumberland, Maryland. Together with the C&O Canal towpath, the GAP is part of a 335 mi (539 km) route between Pittsburgh and Washington, D.C., that is popular with through hikers and cyclists.