The 2019 Castle Peak 100k is presented by Salomon and produced by the Donner Party Mountain Runners, a 501(c)(3) non-profit running club.
We also receive substantial support from Sugar Bowl and all of our generous land partners.
Castle Peak 100k on-course nutrition is provided by Skratch Labs.
Thanks also to: Truckee Donner Lodge, Victory Sportsdesign, Tahoe Mountain Sports, and Alpenglow Sports.