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Lost Sierra Endurance Race

Downieville, United States • 25 Jul 2026

The Lost Sierra Endurance Race, held in Downieville, California, offers a challenging and scenic trail running experience through the Sierra Nevada mountains. Scheduled for July 26, 2025, the event features three distances: 25K, 50K, and 100K. The 100K is an out-and-back course from Downieville to Plumas-Eureka State Park in Blairsden, traversing the Third Divide Trails, Pacific Crest Trail, and Lakes Basin Trails with multiple aid stations. The 50K starts at Plumas-Eureka State Park and finishes in Downieville, while the 25K is a loop beginning and ending in Downieville, ideal for less demanding runs. The race atmosphere includes a post-race BBQ and community activities, emphasizing camaraderie and endurance in a stunning mountain setting. 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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