Hardrock 100 | Hardrock Hundred Mile Endurance Run

- hardrock100.com

The Official Hardrock Hundred Mile Endurance Run, or Hardrock 100, is an 100-mile ultramarathon run with 66,000 feet of elevation change at an average elevation of over 11,000 feet. The run is held on a loop course on 4WD roads, dirt trails, and cross country in the San Juan Mountain Range of Southern Colorado.

  2,031,116   $ 240.00