there’s a new kid in town.
welcome to theMAMMOTH
208 miles.
sept 26-30, 2025
*Permission to open registration has been granted by INF but a permit has not yet been issued and is not guaranteed. We will begin registration, but hold off on credit card processing until given clearance from INF. Once we receive that permission, you will be given the opportunity to either confirm your spot, in which case your credit card will be charged, or remove yourself from the entrants list - win win win
we are delighted to be the first 200 mile race in the USA to offer prize money to our podiums.
PRIZE MONEY
$5,000: first place female and male
$3,000: second place female and male
$2,000: third place female and male
This race is a labor of love, born out of a desire to showcase the incredible beauty of the eastern sierra, and to create an adventure of a lifetime with the community and quality that you know and love from trailfest.