Course Overview
The Kessel Run Ultra 50K takes place in November in Fruita, Colorado's high desert, offering 31 miles with about 3,400 feet of elevation gain. The course starts on fast, flowing singletrack before transitioning to the more demanding Zippity-Do-Da Trail with its steep climbs and descents. Runners will move through classic Colorado high desert terrain at around 5,000 feet elevation, with views of the San Juan Mountains and Colorado National Monument. The route combines smooth, runnable sections with technical ups and downs, and November typically brings ideal running temperatures to this exposed landscape. Aid stations are spaced throughout the course, though this is a cupless event requiring runners to carry their own reusable cups. This race suits runners comfortable with moderate elevation and varied desert terrain. The mix of fast singletrack and technical climbing rewards those who can shift gears between smooth running and grinding climbs. Runners seeking their first 50K or those who prefer less extreme elevation profiles will find this course challenging but manageable.