Mammoth Trail Fest

Donuts, Dirt, and Epic Trail Runs Across the Top of California! From a $17,000 prize purse and world-class ultramarathons, to a kids race, live entertainment, storytelling, and great local food, Mammoth Trail Fest is a multi-day experience designed to increase access to trail and ultrarunning through opportunity, education, and trail stewardship. We believe everyone should have the space to experience the transformative power of trail running and with the splendor of California’s Eastern Sierra – home to Mammoth Lakes – travel across the pond to experience a large-scale European-style trail event on breathtaking terrain is not necessary.

On behalf of our small mountain collective in Mammoth Lakes, I welcome you and your family to Mammoth Trail Fest. Whether racing, supporting, or spectating, enjoy this season end gathering of our global community with inspiring stories, neighborhood grub, and many miles along my favorite local trails before snow covers the Sierra. Please join us.

-Tim Tollefson, Mammoth Trail Fest Founder