Mammoth Trail Fest
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Mammoth Trail Fest runner information
Mammoth Trail Fest is a multi day trail running festival in Mammoth Lakes, California centered on the Village at Mammoth Plaza and surrounding trails including Twin Lakes and Mammoth Mountain summit. The event includes several races, community programming, talks, live performances, and local vendors. Free town shuttles and event shuttles provide transport between village, lodge areas, and race start locations.
Race offerings include:
- Dragon's Back Ascent
- tenkay night run
- 50K single loop
- 26K single loop
- Mammoth Triple combining three races
- Kids 1K
Logistics and safety notes: bib pickup and a festival swag store operate from the trailfest tents in the Village and select remote pickup locations for specific races. Pacers are not allowed. Crews are permitted with location restrictions. Drop bag trucks operate at designated race starts and unclaimed contents may be donated or discarded per event policy. The event is cup less so participants must carry their own cup or bottle.
Course and support: courses are marked with colored flags and signs; GPX files are available for download. Aid station counts vary by race: Dragon's Back Ascent has no aid stations, tenkay one, 50K six, and 26K four. Cutoff times are enforced per race. Professional chip timing with live splits is provided; gun time will determine prize money and chip time will determine age group awards. Prize purses are allocated for overall results and age group awards are given across standard ten year brackets.
Rules and recommended gear: littering, course cutting, and speeding are prohibited. Poles are allowed. No animals on course. Medical staff can remove participants for safety concerns. Participants are recommended to carry a cell phone, at least 1 L of fluids, extra layers, and an emergency blanket. The safety team may require a Cold Weather Kit if conditions demand. The event maintains an emergency action plan with local medical and search partners. Visit the organization's website for the most recent information.
