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Allegheny Trail Alliance
About the Trail

Click here for the PDF About The Trail
 • Location and Length
 • Trail Construction Status
 • Trail Grade and Surface
 • Trail Activities, Horse and other Accessibility
 • Trail Etiquette
 • Weather in southwestern Pennsylvania and western Maryland
 • Basic Equipment
 • Average Trail Travel Speed
 • Planning Your Trip
 • Trail Elevations

Location and Length
When completed, the 150-mile Great Allegheny Passage will connect with the 184.5-mile C&O Canal Towpath at Cumberland, Maryland to create a 334.5-mile traffic and motorized vehicle-free route between Pittsburgh and Washington, DC. The Montour Branch will, when completed, connect McKeesport to the Pittsburgh International Airport and Coraopolis. Click here to see the Mileage Table.
Trail Grade and Surface
The trail has a packed crushed limestone surface for a smooth ride. Built mainly on abandoned rail beds, the trail is nearly level with the average grade of less than 1%. The steepest eastbound grade - 0.8% - is from Harnedsville to Markleton and Garrett to Deal. The steepest westbound grade is from Cumberland to Deal at 1.75%. Near the Big Savage Tunnel, the trail crosses the Eastern Continental Divide. From that point going east, the trail drops 1,754 feet in 24 miles to reach Cumberland and, going west, it drops 1,664 feet in 126 miles to reach Pittsburgh.

From Cumberland to Washington, DC, you drop 625 feet to sea level on the C&O Canal towpath.  The towpath is overall much less improved than the GAP, as it was built for mules and not railroads.  Be prepared for ruts, tree roots, mud and mosquitos.

Trail Activities, Horse and other Accessibility
Bicycling and hiking are the two most popular activities. In addition, sections of the trail system are open to equestrians.

Horses are permitted only on the grassy areas between Boston & Connellsville; Rockwood & Garrett; Frostburg & State Line. The trail system is universally accessible between dawn & dusk. Winter snow allows cross-country skiing and snow shoeing. Fishermen take the trail to favorite fishing spots. Bird watching is another favorite activity.

Trail Etiquette
Visitors to the trail:   Once you leave the trail and enter into the towns, please respect and regard local traffic.  Town streets are not bike trails and cyclists are encouraged (by law!) to abide the rules of the road.  You are now a "vehicle" and should proceed single file, with traffic. Stop at stop signs. Don't ride on sidewalks.  Be considerate when you chain your bike.  Treat the town properties as you would want visitors to treat where you live.   
Weather in southwestern Pennsylvania and western Maryland

www.weather.com
www.cityrating.com
Average Trail Travel Speed
Walkers and hikers typically average two to three miles an hour; cyclists might cover seven to 10 miles an hour. The speed limit on the trail is 15 mph.
Trail Elevations
In the 128 miles from Pittsburgh, PA at 730' feet above sea level to the Eastern Continental Divide at 2,375' above sea level, the trail gently rises 1,665 feet. In the 22 miles to Cumberland, 625' (C&O Brochure says 605") above sea level, it descends 1,754 feet. Thus, many "Thur-Trekkers" choose to make the ride from east to west. Click here to view the Elevation Chart.
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