Colossal Vail 50/50

The Colossal Vail 50/50 is a trail running event held in Colossal Cave Mountain Park, Vail, AZ, featuring multiple distances including a 50-mile, 55K, and two half-marathons (day and night). Designed for both new and experienced ultra runners, the course showcases the scenic Arizona Trail and offers well-stocked aid stations managed by seasoned ultra runners. Participants receive awards based on their performance, with unique finisher prizes for ultra and half-marathon runners.

The event promotes environmental sustainability by being cupless and supports the Arizona Trail Association. Camping and lodging options are available nearby, making it a community-friendly event. Visit the organization's website for the most recent information.