SOLD OUT but you can still join!

sep 19-22, 2024*

mammoth lakes, ca

*pending permit approval from our partners at USFS

three days of racing

donuts, dirt, and epic trail running across the top of california!

four days of community

all in the HEART of california’s HIGHEST ski town

An illustrated map of california showing where Mammoth is
A female runner on her way to the summit of mammoth mountain, as race director tim tollefson cheers her on

whether running, supporting, or spectating, join us for a MAMMOTH-SIZED season end global gathering of our trail community before snow covers the sierra

Runners race through Mammoth village during trail fest

races

Race director Tim Tollefson introducing guests during weekend events

podcasts

Runners smile while watching outdoor films at mammoth trail fest

films

Two runners hug and make a heart shape with their hands framed by the mountains

volunteer

A Salomon branded pop up tent in the village at mammoth trail fest

partners

A family disembarks from an airplane with the eastern sierra mountains in the background

travel

supported by

mammoth trailfest. operates on permitted area and uses authorized facilities located on the National Forest and under special use permission from the Forest Service

Race director Tim Tollefson cheering runners on with a cowbell at the summit of mammoth mountain
A runner bends over exhausted while climbing up the Dragon's Back at mammoth trail fest
A woman smiles as she climbs uphill at mammoth trail fest
a runner runs along the top of mammoth mountain with the mountains in the background
An older female trail runner smiles as she runs by during mammoth trail fest
Evening fireside events at mammoth trail fest
A male runner about to cross under the finishers arch at the top of mammoth mountain
two female trail runners hug with their medals at the finish line
morning sunrise in mammoth village as runners begin their race
Runners lifting their poles in the air as they run past during mammoth trail fest