American Discovery Trail

At over 6300 miles, the American Discovery Trail is the longest trail. It travels from coast to coast across America. Since the Discovery Trail does not follow a chain of mountains, large sections of the trail is on roads. Along its journey, it travels through the cities of San Francisco, Denver, Cincinnati and Washington DC. In addition, it traverses 14 national parks, 16 national forest and over 10,000 historical and natural sites of significance.

American Discovery Trail Society
PO Box 20155
Washington, DC 20041-2155

Phone: (800) 663-2387 or (703) 753-0149

Fax: (703) 754-9008
Email: adtsociety@aol.com