Starting and finishing at Donner Ski Ranch on the Pacific Crest, runners will climb some 15,000 feet at an average elevation of 7,400 feet.
View 2021 Castle Peak 100k course, aid station locations, and elevation profile below.
- Click here for 2021 GPX tracks (updated June 1, 2021)
- Click here for an interactive map of the 2021 course at CalTopo.com
*All course specifics are subject to change pending final permits. Much of this event takes place in your Tahoe National Forest.