Mogollon Monster

SEP
12-13
2026
A point to point trail weekend on the Mogollon Rim near Pine, Arizona, offering a 100 mile ultramarathon and a 42 km race with large elevation change, technical singletrack, and designated crew and aid station support.
12-13 Sep 2026
100 miles Marathon

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Mogollon Monster

The Mogollon Monster is a weekend trail event near Pine, Arizona on the Mogollon Rim. It offers two distances and runs across varied terrain along the Rim with large elevation changes and multiple aid stations.

  • 100 Mile, approx 102.3 miles, 15,900 ft gain, 38 hour limit
  • 42K, 26.7 miles, 4,554 ft gain, 12 hour limit

The 100 mile course is point to point along the Rim and includes six separate climbs onto the Rim. Elevations range roughly from about 5,200 to 8,000 feet. The route uses singletrack, forest roads, and named trails such as the Highline, Donahue, Myrtle, Promontory and Fred Haught. The terrain is described as technical in many sections with rocks, switchbacks and steep grades; some climbs and descents reach 30 to 45 percent at points.

Logistics include shuttles and a point to point finish in the town of Pine. Drop bag locations are provided at several aid stations including Fish Hatchery, Buck Springs and Geronimo for the 100 mile event. Crew and pacer access is allowed only at designated crew zones for the 100 mile race; the 42K has no crew or pacer access. Entry standards include a minimum prior completion of a 50 mile race for 100 mile entrants and an eight hour volunteer service requirement or a trail organization donation option. Weather can vary widely with possible afternoon storms and large temperature swings. Visit the organization's website for the most recent information.

100 mi
100 Mile
Marathon
42k
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