Devil's Backbone

The Devil's Backbone 50 Mile & Relay is a challenging ultramarathon held in the remote Gallatin National Forest near Bozeman, Montana. The race features a single 50-mile course with over 10,000 feet of elevation gain, traversing high mountain ridges and valleys with technical single-track trails, steep climbs, and rocky descents. Participants experience stunning wilderness views of the Gallatin and Bridger mountain ranges.

The event offers solo and two-person relay options, with limited aid stations spaced about 24 miles apart, requiring runners to be self-sufficient. Designed for experienced trail runners, the race emphasizes environmental responsibility and preparedness for variable mountain weather. Visit the organization's website for the most recent information.