Oso Negro 30K: Your gateway into Mexico’s toughest mountain race.
Built for runners looking to step up their trail game without compromising on the raw, unrelenting technicality that defines Oso Negro. This 30-kilometer course packs the full DNA of Sierra de Santiago into a punchy, demanding format: punishing climbs, dense pine-oak corridors, aggressive descents over loose scree and pine needles, and ridgeline trails delivering sweeping views of rugged canyons below. This is not a warm-up; it’s a true test of grit, power, and high-altitude technical agility.
Maximum time: 12 hours
Capacity: 100 runners
Real distance: 30km / 2000m+
Food and drink stations: 3
Salida de Meta 5:00 Am
Aid station 🍌 food 💧 drinks
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