Northern Mexico's most extreme mountain ultra
A grueling 163-kilometer journey through the Sierra de Arteaga's wild high-altitude terrain, accumulating an extraordinary 9,480 meters of climbing across two days and nights. Starting at 4:00 AM on Saturday, runners navigate forest roads, mountain trails, and dramatic ridgelines at elevations between 2,584 and 3,480 meters — spending much of the race above 8,500 feet in one of the most spectacular and remote mountain ranges in northern Mexico.
Recommended for seasoned ultrarunners
Arteaga, Coahuila, MexicoJuly 25, 2026
| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 2,766 m |
km 37 Aid Station Aid Station | 37.0 | 2,318 m |
km 62 Aid Station Aid Station | 62.0 | 2,775 m |
km 90 Aid Station Aid Station | 90.0 | 2,829 m |
km 100 Aid Station Aid Station | 100.0 | 2,742 m |
km 112 Aid Station Aid Station | 112.0 | 2,617 m |
km 130 Aid Station Aid Station | 130.0 | 2,756 m |
km 142 Aid Station Aid Station | 142.0 | 2,634 m |
Finish Finish | 163.0 | 2,762 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Bosques de Monterreal resort offers cabin-style hotel rooms and full cabins at the race venue. All expo activities and race bib pickup occur on-site. Book early — prices increase closer to the event. Contact: 844 438-8170 / 818 333-8430.
Course runs continuously above 8,478 ft, peaking at 11,417 ft — altitude sickness is a real risk for unacclimatized runners
July brings afternoon and evening thunderstorms to the Sierra de Arteaga's exposed ridgelines; organizers may halt the race during electrical storms
Nighttime temperatures drop sharply above treeline — mandatory thermal gear and rain protection required
No required gear specified
No recommended gear specified
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