Hardrock 100
Location
Silverton
United States
Distance
100 Mile
Date
July 17, 2026
Elevation Gain
10000m
hillier than 14 of 17 similar races
Course TypeLoop
Typical WeatherHigh altitude Colorado, 2-22°C (36-72°F), severe afternoon storms possible
WebsiteVisit Website →
A legendary 100-mile loop in the San Juan Mountains of Colorado at 11,000+ feet with 66,000 feet of elevation change.
What Makes This Race Special
- Lottery entry only
- 3,350m average elevation
- 10,000m total elevation gain/loss
- San Juan Mountains
- 48-hour cutoff