The Continental Divide Trail is known for its extreme length, stretching almost 3,100 miles.

The Continental Divide Trail (CDT) is a long-distance hiking trail that roughly follows the Continental Divide of the Americas. A significant feature of this trail is its immense length, spanning approximately 3,100 miles (5,000 km) from the Canadian border to the Mexican border. This makes it one of the longest hiking trails in the world, traversing diverse landscapes and challenging terrain along the backbone of the Rocky Mountains.