running elevated.

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REG OPENS TUESDAY 21st

// REG OPENS TUESDAY 21st

sep 18-21, 2025

mammoth lakes, ca

reg opens 1.21.25

*pending USFS permits

join us for a MAMMOTH-SIZED gathering of trail community

Two female runners hugging at the finish line

A volunteer smiles while handing out bibs at check-in

A female runner excited at the finish line of mammoth trail fest

Sally McRae hosting livestream interviews at mammoth trail fest

races.

fest.

Runners smile while watching outdoor films at mammoth trail fest

films.

volunteer.

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

partner.

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

travel.

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

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

An older female trail runner smiles as she runs by during mammoth trail fest

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

Evening fireside events at mammoth trail fest

A male runner about to cross under the finishers arch at the top of mammoth mountain

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

Race director Tim Tollefson cheering runners on with a cowbell at the summit of mammoth mountain