This challenging 420-mile run begins in Salt Lake City, Utah, and concludes in Island Park, Idaho, featuring a diverse landscape of urban paths and scenic trails. Participants will traverse stunning locations such as the Wasatch Range, Ogden Canyon, Logan Canyon, Bear Lake, Jackson Hole, the Tetons, and Yellowstone National Park. As a non-stage race, runners must rely on personal resources, with crew support being optional. The journey tests not only physical endurance but primarily mental resilience, as emotional and psychological challenges often dominate. This demanding run is not suitable for everyone, and entry is selective.