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Conquer the Sierra Buttes.

Downieville, United States • 26 Jul 2025

Conquer the Sierra Buttes at the Lost Sierra Endurance Race on July 26, 2025, in Downieville, California. Participants can choose from 25K, 50K, and 100K courses, each offering a challenging and scenic trail experience through the Sierra Nevada mountains. The 100K course features an out-and-back route with multiple aid stations, traversing iconic trails like the Pacific Crest Trail and Lakes Basin Trails. The 50K and 25K courses provide shorter but equally beautiful routes through canyons, ridges, and river valleys. The event includes pre- and post-race activities, with a focus on community and supporting local nonprofits. 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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