Mogollon Monster

The Mogollon Monster is a rugged ultramarathon held near Pine, Arizona, about 90 minutes northeast of Phoenix on the Mogollon Rim. It offers two distances: a 100-mile endurance race and a 42K (26-mile) option on Sunday. Runners traverse six rim crossings, climbing from roughly 5,200 to about 7,900–8,000 feet and accumulating around 17,000–18,000 feet of gain on a course that mixes the Highline, Donahue, Myrtle, and Promontory routes with long forest roads.

The race is known for its technical singletrack, remote rim scenery, and an old-school, small-field atmosphere. Notable features include HAM-radio safety, limited crewing at many points, and a Hardrock 100 qualifier status for the 100-mile race. Visit the organization's website for the most recent information.