Mammoth Trail Fest
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Mammoth Trail Fest : Runner information
Mammoth Trail Fest is a multi-race trail weekend based in the Village at Mammoth Plaza in Mammoth Lakes, CA. The event includes several distinct races and finishes primarily in the Village Plaza, with the Dragon’s Back Ascent finishing at the summit sign on Mammoth Mountain.
Distances
- Dragon’s Back Ascent
- Tenkay
- Mammoth 50K
- Mammoth 26K
- Woolly’s 1K
Bib pickup and a live race briefing take place in the Village at Mammoth Plaza tents; a separate pickup location is used for the Dragon’s Back Ascent at the Tamarack yurt. Wave assignments are communicated to runners before race weekend; runners competing for prize money must start in the first wave of their race.
Course and support details: courses are marked with flags, ribbons, chalk, and signs (26K and DBA use ORANGE, 50K PURPLE, Tenkay GREEN). Aid station counts: DBA no aid, Tenkay one aid, 50K six aid stations, 26K four aid stations. Aid stations offer a variety of food, GU products, and water; Summit aid will include pancakes and planned GF and vegan options. The event is cup free; runners should carry their own bottles or cups.
Rules and safety: no littering or course cutting, bibs must be visible, poles allowed, no animals on course, headphones discouraged. No pacers; crews allowed except at specified aid stations. Recommended gear includes a cell phone, minimum 1 L fluids, extra layers, and an emergency blanket. A Cold Weather Kit may be required by safety staff. The event operates at high altitude and on technical terrain; runners are responsible for self reliance until help arrives under the event Emergency Action Plan.
Logistics: designated drop bag trucks operate for DBA, 26K, and 50K with return locations in the Village Plaza woodchip area and, for leftover items, the Palisades Room at Grand Sierra Lodge; unclaimed contents may be donated or discarded after Monday 9/28. Professional chip timing will be used for results and age group awards; gun time determines prize money. Random drug testing applies. The event emphasizes sustainability with Terracycle collection for nutrition wrappers, reusable materials where possible, and free town shuttles during the weekend. Visit the organization's website for the most recent information.
