Mammoth Trailfest

The Mammoth Trailfest returns to Mammoth Lakes, California on September 25th through the 27th, offering a unique multi-day experience centered around trail running in some of the most breathtaking terrain in the Eastern Sierra Nevada mountains.
Participants can expect an atmosphere that blends community spirit with competitive adventure. Race morning starts early as runners gather along Minaret Road near Mammoth Lakes to begin their journeys across trails known for stunning vistas and challenging gradients. The setting is serene yet vibrant, with a backdrop of pine forests and granite peaks reflecting the first light of dawn.
Mammoth Trailfest has been running since its inception in 2019, fostering a sense of camaraderie among runners while supporting local causes such as trail stewardship initiatives and youth education programs. The event attracts thousands annually, featuring elite athletes alongside amateur enthusiasts who come together to experience the transformative power of trail running. Participants can also enjoy live entertainment, storytelling sessions, and delicious food stalls throughout the festival grounds.
The race course winds through Mammoth Lakes' natural trails, offering a mix of firm and slightly soft surfaces that challenge runners with elevation changes and scenic overlooks. Notable features include the Dragon's Back Ascent on September 25th at Minaret Road starting point and various checkpoints along each route where aid stations provide essential hydration and nutrition.
Weather conditions in late September typically range from mild to cool, with average temperatures around 13 degrees Celsius and minimal precipitation expected during race hours. The air is generally dry but not arid, making for comfortable running conditions despite the early morning chill that gives way to warmer midday sun exposure.
The Mammoth Trailfest offers a variety of distance options catering to all levels of runners: the Dragon Ascent, the Mammoth Triple, tenkay, 50K, Kids Run, and 26K. Each event is designed with specific challenges in mind while maintaining accessibility for participants seeking both competition and adventure.
Registration for the Mammoth Trailfest can be completed through the official website at https://ultrasignup.com/register.aspx?did=131026 where runners will find detailed information about each race option, including fees such as $95.00 for Dragon Ascent or $440.00 for Mammoth Triple. Early bird discounts and waitlist options are available to ensure a spot in the event.
For those planning their first visit to Mammoth Trailfest, bib pickup is scheduled at 10001 Minaret Rd on September 25th from 6:30am until race start times. All participants must bring photo identification for verification purposes and will receive detailed route maps and timing chips upon arrival.
The Mammoth Trailfest takes place in the heart of California's Eastern Sierra, offering an inclusive experience that celebrates trail running through community engagement and environmental stewardship efforts. This event is a must-attend for anyone looking to immerse themselves in the natural beauty and competitive spirit of Mammoth Lakes during its autumn season.