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Hardrock 100

Silverton, United States • 11 Jul 2025

The Hardrock 100 is a challenging 100-mile ultramarathon held annually in the San Juan Mountain Range of southwestern Colorado, centered around Silverton. The race features a counter-clockwise loop course that traverses rugged backcountry terrain, including 4WD roads, dirt trails, and cross-country sections. Runners experience a total elevation change of about 66,000 feet, with climbs and descents of roughly 33,000 feet each, averaging an elevation of 11,186 feet. The course passes near historic mining towns such as Silverton, Lake City, Ouray, Telluride, and Ophir, and reaches a high point of 14,048 feet atop Handies Peak. The event is renowned for its high altitude, demanding terrain, and scenic mountain atmosphere. Visit the organization's website for the most recent information.

United States Colorado Silverton

Race information

Website
100 mi
33000 m+
100 Miler
Visit the organization's website for the most recent information.
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