foster community

one mile at a time

we believe everyone should have room to experience the transformative power of trail running

deep in California’s Eastern Sierra - home to Mammoth Lakes - you will find an inclusive large-scale event on breathtaking terrain. from world-class races and community focused events, to free live entertainment, storytelling, and great local food, mammoth trailfest. is a multi-day experience designed to increase access to trail running through opportunity, education, and trail stewardship. it is an event built by our community, for our community, right in the heart of California

on behalf of our small mountain collective in Mammoth, I welcome you and your family to mammoth trailfest. - whether racing, supporting, or spectating, enjoy this season’s end gathering of our community with inspiring stories, neighborhood grub, and miles along our favorite local trails before snow covers the Sierra

please join us

tim + linds tollefson, head crafters

entry discounts to date: $93,690.35

mammoth lakes

home to just 8,000 permanent residents, Mammoth is a small ski town tucked high along the eastern flanks of California’s Sierra Nevada mountain range and surrounded by numerous Wilderness areas, National Forest land, and beneath 14,000ft peaks. this area is just north of Payahuunadü -Land of the Flowing Water- which has been cared for by Nüümü  since time immemorial. it is a place you have to experience to still not fully believe exists. the jagged mountains breach straight up from the valley floor and tower over everything in sight including endless world-class singletrack trails. the enchantment and beauty of the Eastern Sierra often lure people in and they never leave. as visitors on this land we have a responsibility to be good stewards to the trails and mammoth trailfest. aims to educate our growing community on the importance of sustainable use and provide opportunities to give back to the area that grants us revelatory experiences