The Devil's Backbone 50 Mile & Relay is a challenging ultramarathon set in the rugged Gallatin National Forest, where participants will experience some of Montana's most stunning yet demanding terrain. This solo and relay race offers a single 50-mile course that includes high mountain ridges and valleys, with elevations soaring above 10,000 feet, providing breathtaking views of the Gallatin and Bridger ranges. The course features technical single-track trails, steep ascents, and rocky descents, making it suitable for seasoned trail runners with strong mountain skills. Runners should be prepared for limited support along the remote course, as aid stations are spaced far apart, requiring self-sufficiency. This race is not recommended for beginners due to its challenging nature, unpredictable weather, and the necessity for mandatory gear like a map and first aid kit. Participants are expected to respect the environment while navigating through this beautiful wilderness, testing their endurance amid the unique challenges of the terrain.