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High Lonesome 100

Mount Princeton, United States • 18-19 Jul 2025

The High Lonesome 100 is a challenging 100-mile trail race set in the stunning Sawatch Range of Colorado. With a total elevation gain of 23,500 feet and a high point of 13,150 feet, this race offers a rugged loop course that showcases some of the best singletrack in the state. Participants will traverse the National Continental Divide and Colorado Trails, pass through ghost towns, and tackle five alpine passes, all within a 37-hour time limit. The event emphasizes community and inclusivity, partnering with the Trail Mix Fund to support underrepresented runners. Join this extraordinary mountain race for an unforgettable experience! Visit the organization's website for the most recent information.

United States Colorado Mount Princeton

Race information

Website
100 mi
23500 m+
100 Miles
Visit the organization's website for the most recent information.
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