High Quality Content by WIKIPEDIA articles! The Appalachian National Scenic Trail, generally known as the Appalachian Trail or simply the AT, is a marked hiking trail in the eastern United States extending between Springer Mountain in Georgia and Mount Katahdin in Maine. It is approximately 2,181 miles (3,510 km)a long. Along the way, the trail passes through the states of Georgia, North Carolina, Tennessee, Virginia, West Virginia, Maryland, Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, Vermont, New Hampshire, and Maine. The path is maintained by 30 trail clubs and multiple partnerships, and managed by the National Park Service and the nonprofit Appalachian Trail Conservancy. The majority of the trail is in wilderness, although some portions traverse towns and roads, and cross rivers.