Ouray 50 Mile Endurance Run

The Ouray 50 Mile Endurance Run, held in Ouray, Colorado, is a challenging mountain ultramarathon featuring approximately 23,582 feet of elevation gain. Known for its technical and demanding trails, the course is set nearly two miles above sea level amidst stunning mountain scenery. The race is designed as a "broken-windshield" format, emphasizing difficulty over distance, making it tougher than many 100-mile races.

Participants must complete volunteer service or pay an opt-out fee before the event. The race offers cash prizes for top finishers, subject to drug testing, and requires runners to carry GPS trackers. The atmosphere is low-key and old school, focusing on endurance and grit rather than participation trophies. Visit the organization's website for the most recent information.