Races
Mogollon Monster
Pine. Off-camber limestone under the Mogollon Rim. The Highline decides the day.
- Start6,637 ft
- High7,872 ft
- Low5,333 ft
- Finish5,381 ft
- See Canyon at mile 11
- Horton Trailhead at mile 22, cutoff 8.25 hours
- Fish Hatchery at mile 27, cutoff 10 hours, drop bag
- Myrtle at mile 40
- Buck Springs at mile 43, cutoff 15.75 hours, crew
- Pinchot Cabin at mile 51, cutoff 19.25 hours
- Washington Park at mile 59, cutoff 22.5 hours
- Geronimo at mile 71, cutoff 27.75 hours, drop bag
- Donahue at mile 80, cutoff 30 hours
- Pine Canyon at mile 89, cutoff 33.5 hours
- Pine Trailhead at mile 100
- Finish Pine at mile 101, cutoff 38 hours
Terrain
Field, 2025 · 13-year samplescraped
Geometryderived
Weather at the cruxderived
At hour 10 of race, feels like 38 C (100 F).Sample of 7 race days, medium confidence.At hour 10 of race, apparent temperature P90 is 38 C / 100 F.
Course records
The cruxThe Highline Trail
Course DNA
The Course
The Highline Trail sits under the Mogollon Rim. Off-camber singletrack. Loose limestone boulders. Downed pines. Deep canyons. Myrtle and Donahue climb at 30 to 45 percent on loose rock. You claw. The Rim wall traps the heat. Shade is rare. Low 5,000 feet. High 8,000. Trail 75 percent, jeep 20, paved 5.
The Work
Ankles take the Highline sideways for hours. Stabilizers fatigue first. Quads take the descents. Eccentric, constant. Single-leg stability. Ankle mobility. Long vertical hikes on technical rock.
Kit
Sticky rubber on the limestone. Vibram Megagrip or La Sportiva FriXion. Lightweight carbon poles for the off-camber tread. A bright waist lamp for the rock fields after dark.
Race Day
The Highline is slow. Power-hike Myrtle and Donahue. Pinchot Cabin will try to keep you in the cold pines. Ten minutes. Then leave. Washington Park and Geronimo sit on rough gravel. Crew waits with dry layers and hot calories. Broth. Quesadillas. The night climbs are cold.
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Sources (3)
- Field stats (2025): https://ultrasignup.com/results_event.aspx?did=120045
- Course record (M): https://ultrasignup.com/results_event.aspx?did=41437
- Course record (F): https://ultrasignup.com/results_event.aspx?did=99891