Hardrock 100 Endurance Run

Loop through the San Juan Mountains at average 11,000 ft elevation. Thirteen passes above 12,000 ft, including 14,000+ ft summits. 33,000 ft of climbing total.

July in the San Juans: severe. Afternoon lightning storms almost daily. Below freezing above 12,000 ft at night. Snow on high passes possible even in July. Remote — no road access for 40+ miles.

13 aid stations over 100 miles. Some accessible only on foot. No crew at remote stations. Drop bags at 8 locations.

The most remote and high-altitude 100 in the US. Nutrition failure at remote aid stations means no crew support — athletes must be completely self-sufficient between drops.