Great American Rail-Trail

The Great American Rail-Trail is a planned cross-country rail trail in the United States. The trail will run 3700 mi between Washington D.C. in the east and the state of Washington in the west. The planned trail is already more than 53% complete, with over 2,000 completed miles on the ground. The trail runs through 12 states and the District of Columbia, and will be within 50 mi of 50 million Americans. The work is being facilitated by Rails-to-Trails Conservancy. The Great American Rail-Trail is composed of over 150 existing multi-use trails with about 90 gaps to be filled. The project was launched in May 2019.

Route
The trail overlaps several long distance rail trails for part or all of their route. From west to east, they include:
 * Olympic Discovery Trail, Washington
 * Palouse to Cascades State Park Trail, Washington
 * Trail of the Coeur d'Alenes, Idaho
 * Olympian Trail, Montana
 * Headwaters Trail System, Montana
 * Casper Rail Trail, Wyoming
 * Cowboy Trail, Nebraska
 * Cedar Valley Trail, Iowa
 * Hennepin Canal Parkway State Park, Illinois
 * Illinois and Michigan Canal Trail, Illinois
 * Nickel Plate Trail, Indiana
 * Cardinal Greenway, Indiana
 * Little Miami Scenic Trail, Ohio
 * Ohio to Erie Trail, Ohio
 * Panhandle Trail, West Virginia
 * Great Allegheny Passage, Pennsylvania and Maryland
 * C&O Towpath Trail, Maryland
 * Capital Crescent Trail, Maryland and D.C.