from community, for community
sep 19-22, 2024*
mammoth lakes, ca
*pending permit approval from our partners at USFS
donuts, dirt, and epic trail running across the top of california!
three days of racing
four days of community
all in the HEART of california’s HIGHEST ski town
whether running, supporting, or spectating, join us for a MAMMOTH-SIZED season end global gathering of our trail community before snow covers the sierra
supported by
Reusable Propane Cylinder Campaign
connect with us! #RUNMAMMOTH
mammoth trailfest. operates on permitted area and uses authorized facilities located on the National Forest and under special use permission from the the Forest Service