The American Discovery Trail is a system of recreational trails and roads which collectively form a coast-to-coast hiking and biking trail across the mid-tier of the United States. Horses can also be ridden on most of this trail. It starts on the Delmarva Peninsula on the Atlantic Ocean and ends on the northern California coast on the Pacific Ocean. The trail has northern and southern alternates for part of its distance, passing through Chicago and St Louis respectively. The total length of the trail including both the north and south routes is 6,800 miles (10,900 km). The northern route covers 4,834 miles (7,780 km) with the southern route covering 5,057 miles (8,138 km). It is the only non-motorized coast-to-coast trail.
The trail passes through 14 national parks and 16 national forests and uses sections of or connects to five National Scenic Trails, 10 National Historic Trails, and 23 National Recreation Trails. For part of its distance, it is coincident with the North Country Trail and the Buckeye Trail.
The trail passes through the District of Columbia and the following 15 states:
The Colorado Trail is a long-distance trail running for 486 miles (782 km) from the mouth of Waterton Canyon southwest of Denver to Durango in Colorado, United States. Its highest point is 13,271 feet (4,045 m) above sea level, and most of the trail is above 10,000 feet (3,000 m). Despite its high elevation, the trail often dips below the alpine timberline to provide refuge from the exposed, storm-prone regions above.
Source: Colorado Trail – Wikipedia