A nighttime ultra in the heart of the Patagonian Andes
The 110k begins at 9:00 PM Friday and immediately plunges runners into the magic of running through the Patagonian night. Covering 107 kilometers with 5,730 meters of elevation gain through Lanín National Park, this distance sits between the 70k and the 100 Miles in challenge — a true overnight ultra experience in one of Argentina's most beautiful mountain settings. Finishers under 27 hours earn a spot in the Western States 100 lottery.
Experienced ultrarunners
San Martín de los Andes, Neuquén, ArgentinaApril 10, 2026
| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 742 m |
PAS Rosales Aid Station | 7.9 | 982 m |
PAS Portezuelo Aid Station | 14.8 | 1,415 m |
PAS Colorado (outbound) Aid Station | 25.1 | 1,029 m |
PAS del Mallín Aid Station | 35.4 | 924 m |
PAS Quechuquina Aid Station | 51.7 | 659 m |
PAS Nonthue Aid Station | 58.1 | 650 m |
PAS del Lago Aid Station | 68.8 | 658 m |
PAS Coihue Aid Station | 77.0 | 1,055 m |
PAS Colorado (return) Aid Station | 89.4 | 1,029 m |
PAS Bayos Aid Station | 98.0 | 877 m |
Cut Route 48 Checkpoint | 99.8 | 947 m |
Finish Finish | 107.3 | 643 m |
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