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Conquer the Sierra Buttes.

Downieville, United States • 26 Jul 2025

The Lost Sierra Endurance Race, scheduled for July 26, 2025, in Downieville, California, offers an exhilarating challenge for runners with three distance options: 100K, 50K, and 25K. Participants will navigate scenic trails through the Sierra Buttes, experiencing breathtaking views and diverse terrains. The 100K race features an out-and-back course, while the 50K is a point-to-point route, and the 25K is a looped course ideal for those seeking a less strenuous experience. Post-race festivities include a BBQ, and all finishers receive unique awards. This event promises an unforgettable adventure in the heart of the Sierra Nevada mountains. Visit the organization's website for the most recent information.

United States California Downieville

Race information

Website Registration
100 km
100k
50 km
50k
25 km
25k
Visit the organization's website for the most recent information.
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