Jul 10, 2026 Extreme 🔥 Ultra 🏔️ Alpine
Hardrock 100
🇺🇸 Silverton, Colorado, United States
A brutal high-altitude loop through the San Juan Mountains with over 33,000 ft of climb. Kiss the Hardrock to finish.
161Distances (km)
10,000Elevation gain (m)
ITRAUltra, Alpine
37.812, -107.665Start coordinates