Mogollon Monster
Pine, United States • 6-7 Sep 2025
The Mogollon Monster 100 is a challenging trail ultramarathon held near Pine, Arizona, about 90 minutes northeast of Phoenix. The main event covers roughly 100 miles along the rugged Mogollon Rim, featuring six major climbs and descents with steep grades up to 45%, and a total elevation gain of approximately 18,000 feet. The course ranges from 5,200 to 8,000 feet in elevation, traversing diverse ecosystems from high Sonoran Desert to vast Ponderosa Pine forests. A 42K race is also offered on the following day, sharing part of the scenic and technical terrain. The race is known for its tough, technical trails, variable weather, and stunning vistas, making it a true test of endurance and trail running skill. Visit the organization's website for the most recent information.