Blind hiker prepares to thru-hike the Continental Divide Trail

Stretching more than 3100 miles in length, the Continental Divide Trail is one of the longest and most challenging treks in the entire world. Together with the Appalachian Trail and and the Pacific Crest Trail, the CDT makes up the “Triple Crown” of long distance hikes in America. This spring, blind hiker Trevor Thomas will set out to conquer it, starting the journey along the Canadian border and traveling south to the Mexican border.

Thomas, who lost his sight to illness back in 2005, has already backpacked the full length of both the Appalachian Trail (2175 miles) and the Pacific Crest Trail (2650). In the case of the AT, he went completely unassisted and on the PCT he had help only through deep snow and poorly marked areas. When he sets out on the CDT this June, Thomas will be joined by three companions who will assist him through the more challenging sections, although he expects to hike most of the trail just like any sighted hiker would.

As the name implies, the CDT follows the Continental Divide through the Rocky Mountains, passing through five U.S. states in the process. Thomas’ route will take him, and his team, through Montana, Idaho, Wyoming, Colorado, and New Mexico. Along the way, they’ll pass through a variety of sub-mountain ranges including the beautiful San Juans, the Sawatch Range, and the breath taking Grand Tetons. The entire journey is expected to take roughly six months to complete.

You can find out more about their plans at