The Continental Divide Trail stretches 3,100 miles from Mexico to Canada along the craggy spine of the Rocky Mountains. While technically considered only about 70% complete, there are still a handful of hearty adventurers who set out each year to conquer what many consider to be the toughest leg of the US Hiking Triple Crown (the other two legs being the AT and the PCT). TheCDT is a rugged trek with high elevations, exposure to the elements, and wildlife hazards, but totally worth the risk for some hikers. The wild western landscapes are jaw dropping.