History, nature, culture.
The trail starts at the Pentagon in Arlington, Virginia and connects with the Chesapeake & Ohio Canal National Historical Park, which follows the Potomac River to Cumberland, MD, for 184 miles. From Cumberland, the trail follows the Great Allegheny Passage towards Pittsburgh, turning off at Garrett to the Flight 93 Memorial in Shanksville, PA.The trail continues east to New York City following many existing trails across Pennsylvania, with the final leg from New York City to the Pentagon mostly following the East Coast Greenway. The trail is shaped as a triangle forever connecting these three sites.
23-day trail tour
A group of cyclists bike the entire 9/11 Trail in 2018 and compiled their route by RideWithGPS links, mileage, elevation and points of interest in a spreadsheet for easy reference. Their caveat: the route is a combination of quiet greenway and trail segments, back roads, and busier roads and small highways. Anyone biking or walking the route does so at their own risk and should be experienced and comfortable navigating through cities and rural areas.