Lost Sierra Endurance Race

Experience the Lost Sierra Endurance Race, an exciting challenge nestled in the breathtaking Sierra Buttes of Downieville, CA. Runners can select from the 50K and 100K distances, each offering a unique race through the Sierra Nevada mountains with remarkable scenic views. The demanding 100K course takes participants on an out-and-back journey along the Third Divide, Pacific Crest, and Lakes Basin Trails, revealing expansive vistas along the way. The 50K route begins in Plumas-Eureka State Park, weaving through stunning lake valleys and rugged canyons before concluding in downtown Downieville. Join us for an unforgettable adventure!