
About the event
Covering 56 kilometers of wild mountain terrain, this ultra-marathon challenges runners with 2,560 meters of climbing, demanding both endurance and technical skill. The course follows remote single-track trails, historic backcountry routes, and dirt forest roads, immersing participants in the untouched beauty of Northern California’s wilderness. Hosted by Headwaters Trail Runs, the event is well-supported with aid stations, but runners must be prepared for self-sufficiency in the backcountry. For those seeking a true ultra-mountain challenge, this high-elevation race delivers an unforgettable experience.
Date:
Sat
Jun 21
2025
Location:
Distance:
Elevation profile:
Hilly
Website:
LinkElevation gain:
Number of participants:
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
The Headwaters 56K Ultra, set for June 21, 2025, is a high-altitude, rugged adventure through the Klamath Mountains, featuring 2,560 meters of elevation gain. Organized by Headwaters Trail Runs, this course is not for the faint of heart, offering technical climbs, stunning ridgelines, and breathtaking views of Mount Shasta.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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