River Of No Return Endurance Runs
Challis, United States • 14 Jun 2025
The River of No Return Endurance Runs, taking place in Challis, Idaho, offers a thrilling experience for runners with three challenging distances: 32K, 55K, and 108K. Participants will navigate diverse terrains, including significant mountain climbs exceeding 9,000 feet, while enjoying breathtaking scenery and wildlife. The event features well-stocked aid stations and encourages support crews, enhancing the experience for both runners and their families. The race culminates with a celebratory finish down Main Street, where local supporters cheer participants home. This event is part of the Idaho Trail Ultra Series, promising an unforgettable adventure in Idaho's stunning landscapes. Visit the organization's website for the most recent information.