Mogollon Monster
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Mogollon Monster : event overview
The Mogollon Monster is a trail weekend on the Mogollon Rim near Pine, Arizona, held September 12-13, 2026. The event offers two distances:
- 100 Mile - approximately 102 miles, point-to-point on the Rim
- 42K - 26.7 miles (about 42 kilometers)
The 100 mile course climbs the Rim six separate times and stays largely between about 5,200 and 8,000 feet elevation, with a listed maximum near 7,912 feet and total elevation gain around 15,900 feet. Sections include steep climbs and descents, exposed single track such as the Highline Trail, and long stretches on forest roads and rim top trail. The 100 mile event has a 38-hour time limit; the 42K has a 12-hour time limit. Weather can vary from warm daytime temperatures to near-freezing on top of the Rim, and afternoon thunderstorms are possible.
Course features, access and requirements
The 100 mile race is point-to-point, finishing in the town of Pine with shuttles from a designated Old Pine parking area. Drop bags are provided at Fish Hatchery, Buck Springs, and Geronimo. Crew access is limited to specified crew zones (examples include Black Mesa, Buck Springs, General Springs, Dickerson Flat); several aid stations do not allow crews. Pacers and crew rules differ by distance—no crew or pacers are allowed for the 42K. Entrants for the 100 mile distance must have completed at least a 50 mile race previously and meet an 8-hour volunteer service requirement or provide an approved donation alternative. Live split tracking is available during race weekend. Visit the organization's website for the most recent information.