Mammoth Trail Fest

he passion project of Mammoth Lakes local and ultrarunner, Tim Tollefson, the Mammoth Trail Fest aims to share the transformative power of trail running against the splendid backdrop of Mammoth Lakes. Offering everything from world-class trail races and community-focused events to free 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. It is an event built by the community, for the community, right in the heart of California.