The course will start and finish at the Sun Valley Nordic Center going through Diamondback, White Cloud, Dog Loop, Boundary and Proctor Loop trails. Participants have the option to do the 20K distance (one lap), the 40K distance (two laps), or to enter with a friend for the 40K duo relay.
By special arrangement, Sun Valley Company is allowing fat bike riding on the course for Friday, Saturday, and Sunday with a valid trail pass.
DO NOT RIDE TRAILS WITHOUT A VALID TRAIL PASS FROM SUN VALLEY.
Tires must be 3.5" or wider.
Helmets are required for all participants
Valid trail pass for any riding on course.