Ouray 100 Mile Endurance Run

The Ouray 100 Mile Endurance Run is a challenging ultramarathon held in Ouray, Colorado, nestled in the scenic San Juan Mountains. Covering 100 miles with approximately 41,862 feet of elevation gain, the course features fourteen major climbs, including a final 5,000-foot ascent to the Bridge of Heaven before descending to the finish at Fellin Park. Known for its rugged terrain and breathtaking views, the race offers a tough but rewarding experience.

Participants must complete eight hours of volunteer service or pay an opt-out fee. The event emphasizes a no-frills, old-school atmosphere, awarding finishers with a distinctive belt buckle and cash prizes for top finishers, subject to drug testing. Visit the organization's website for the most recent information.