American history along coast-to-coast American Discovery Trail

The grand panorama of American history comes into focus with the launch of the American Discovery Trail (ADT), America’s first coast-to-coast non-motorized trail. The ADT crosses 15 states and the District of Columbia over 6,356 miles from Cape Henlopen State Park, Delaware, to the Golden Gate Bridge in San Francisco, California.

The ADT passes near the boyhood homes of five US presidents, traces the explorations of George Washington along the Potomac River, as well as the Lewis and Clark expedition. From St. Louis, Missouri, the ADT travels along the Pony Express routes through gold mining towns and crosses the Rockies and Sierras.

The ADT links small towns, urban areas, Appalachian Mountains, Great Plains, the Rockies and the High Sierras. It includes thousands of historical and cultural landmarks, old forts, historical monuments, grand homes and museums. The ADT is a multi-use trail permitting walking, running, cycling and horseback riding. It includes 14 national parks, 16 national forests, and an estimated 10,000 sites of cultural, historical and natural significance. Contact 800-663-2387 or