Point-to-point from the Two-Sixty Trailhead (AZ-260, near Christopher Creek) to the Pine Community Center. Climbs the Mogollon Rim six separate times with grades up to 30-45% at points, alternating between exposed Highline Trail singletrack below the Rim and forest-road/singletrack miles on top around 7,500-8,000 ft. Runs through the night for most starters; the race explicitly does not GPS-track runners for the full course and relies on HAM radio check-ins at each station.
Course-intro paragraph gives a looser, conflicting elevation/distance figure than the Key Stats box used for the structured fields: 'approximately 17,000 feet' of gain (vs. Key Stats' 15,900 ft) and 'never above 8,000 feet' (vs. Key Stats' max 7,912 ft), and 'roughly 101 miles' or 'Mile 100.7 ish' at the finish (vs. Key Stats' 100.5 mi). Men's course record: 20:52:07, Jeff Browning (2021). Women's course record: 24:42:24, Megan Eckert (2023). A separate 'Old Courses' (pre-fire-reroute) record table exists: men's 20:13:07, Michael Versteeg (2017 fire-reroute route). UTMB Index lists the 2025 edition at 166.6 km / 5280 m+ (about 103.5 mi / 17,322 ft) with 202 finishers — a fourth, still-different mileage figure, cited here only as evidence of genuine year-to-year course variation, not as a 2026 fact (utmb.world). Founder's own warning, quoted directly: 'This race and this terrain can destroy you... If you are not a self sufficient runner you will fail here... If you cannot make it several hours safely on your own, you will fail here.' The race has cut itself short at the halfway mark once before for extreme weather (2014) and reserves the right to do so again.
A rugged point-to-point trail race on the Mogollon Rim near Pine, Arizona, about 90 minutes northeast of Phoenix. The 100 Mile distance runs from the Two-Sixty Trailhead to the town of Pine, climbing the Rim on six separate occasions between elevations of roughly 5,200-5,300 ft and 7,900-8,000 ft, through Sonoran desert scrub at the bottom and the largest contiguous ponderosa pine forest in the world on top. A shorter 42K starts the next morning at the Pine Trailhead and finishes alongside the 100 Mile in the center of Pine.
'Mogollon Monster' plays on both the difficulty of the course and local Bigfoot legend on the Rim. Race results are shown on the official site back to 2012, and the founder (Jeremy Dougherty, whose brother Noah is the current Race Director) says he has 'ran hundreds of miles of this course since 2012.' The founder's own account states the race originally ran a 106-mile course and that 'in our first five years... we only saw 99 runners finish.' Aravaipa Running has directed the race since 2016. A 2017 wildfire (the Highline Fire) damaged trail east of Washington Park and, combined with flooding that followed within two months, forced a reroute that also affected the neighboring Zane Grey 50 in 2018 and 2019; the site records a separate 'Old Courses' course-record table for the pre-reroute route. The current point-to-point layout (Two-Sixty Trailhead to Pine) has been used since roughly 2021 -- the 2025 crew manual calls that year 'the fifth year with the point-to-point route.' No result year appears for 2020 in the site's own year-by-year results list.
| Mile | Station | Cutoff | Crew | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 |
Two-Sixty Trailhead
5,300 ft
|
? | · | · | · | ? | 11.10 |
| 11.10 | See Canyon | ? | · | · | · | ? | 10.40 |
| 21.50 | Horton Trailhead | ? | · | · | · | ? | 1.10 |
| 22.60 | Black Mesa Crew Zone | ? | ● | · | · | ? | 4.20 |
| 26.80 | Fish Hatchery | ? | · | ● | · | ? | 12.40 |
| 39.20 | Myrtle | ? | · | · | · | ? | 3.60 |
| 42.80 |
Buck Springs
None · no cell service
|
? | ● | ● | ● | ? | 7.50 |
| 50.30 | Pinchot Cabin | ? | · | · | · | ? | 6.30 |
| 56.60 |
General Springs Crew Zone
None · no cell service
|
? | ● | · | ● | ? | 2.40 |
| 59.00 | Washington Park | ? | · | · | · | ? | 11.60 |
| 70.60 | Geronimo | ? | · | ● | · | ? | 9.10 |
| 79.70 | Donahue | ? | · | · | · | ? | 3.80 |
| 83.50 |
Dickerson Flat Crew Zone
None · no cell service
|
? | ● | · | ● | ? | 4.90 |
| 88.40 | Pine Canyon | ? | · | · | · | ? | 10.60 |
| 99.00 | Pine Trailhead | ? | ? | · | ● | ? | 1.50 |
| 100.50 | Finish (Pine Community Center / Town Ramada) | ? | ● | ? | ? | ? | ? |
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