Single loop course perfect for testing your mountain legs or an elites' finale after a long season of racing. Participants will start in the Village Plaza surrounded by fans and do a small but tough and technical loop of the region with a Mammoth Mountain summit before returning to the lively Village Plaza. It carries a $15,000 purse and a world first para athlete purse.
3,800ft or more of vertical gain, an average elevation over 9,100ft, a low of 8,050ft and a high of 11,053ft at the summit of Mammoth Mountain. The surface is a mix of buttery singletrack, rocky technical trails, soft pumice trails, limited bike path and access roads. The race calls it a high altitude challenge that will be most enjoyed with proper preparation and training, and the 2.75 mile Dragon's Back climb to the summit the most challenging trail of the whole race.
Mammoth Trail Fest is a three day trail running festival in Mammoth Lakes, high in California's Eastern Sierra. The races that start and finish in the Village Plaza are a Friday night 10K run under headlamps, a 32 mile 50K on Saturday, a kids 1K, and a 16 mile 26K on Sunday. The 50K and the 26K are each a single loop with no reused trail, and both climb to the 11,053 foot summit of Mammoth Mountain before dropping back into town. The same weekend also holds the Dragon's Back Ascent, a 3 mile hill climb that starts at Twin Lakes and finishes on the summit. Around the racing there is free live entertainment, storytelling and local food in the Village, open to family, friends and fans.
The first Mammoth Trail Fest was run in September 2022. It was built by Tim and Linds Tollefson and the community they live in, and the 50K has grown every year since: 234 finishers in 2022, then 417, 540 and 637 through 2025. The race describes itself as a multi-day experience designed to increase access to trail running through opportunity, education, and trail stewardship.
| Mile | Station | Cutoff | Crew access | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 | Village | 8:20am | ● | ● | ? | ● | 3.50 |
| 3.50 | Twin Lakes | 9:50am | · | · | ? | ● | 4.00 |
| 7.50 |
Summit
11,053 ft
|
11:20am | ● | ● | ? | ● | 3.40 |
| 10.90 | McCoy | 12:50pm | ● | · | ? | ● | 3.00 |
| 13.90 | Garage | 2:05pm | · | · | ? | · | 2.30 |
| 16.20 | Village | 3:20pm | ● | ● | ? | ● | ? |
Parking. Eagle Lodge, at about mile 1.65 of the 50K and the 26K, has free parking.
Parking. Crew park at Main Lodge, which has free parking, and ride the gondola up.
Parking. Crew park at Main Lodge, which has free parking, and ride the gondola.
14 people have been out there with a camera or a microphone.
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