The Continental Divide National Scenic Trail (CDT) is a United States National Scenic Trail running 3,100 miles (5,000 km) between Mexico and Canada. It follows the Continental Divide of the Americas along the Rocky Mountains and traverses five U.S. states — New Mexico, Colorado, Wyoming, Idaho and Montana.
The Continental Divide Trail along with the Appalachian Trail and the Pacific Crest Trail form what thru-hiker enthusiasts have termed the Triple Crown of long-distance hiking in the United States.