Mammoth Bar Trail Runs

Skybreaker Racing’s Mammoth Bar Trail Runs take place in the Mammoth Bar OHV Area within the Auburn State Recreation Area, near Auburn, California. The event offers three distances: Half Marathon, 10K, and 5K, designed for a high-vertical, rugged trail experience. Participants can expect steep climbs and descents, with sweeping views of the American River Canyon.

Described as not your average course, Mammoth Bar emphasizes elevation and challenging terrain under the Singletrack Running umbrella. The atmosphere centers on endurance and adventure, positioning Mammoth Bar as a new, notable addition to Skybreaker Racing’s Northern California trail calendar. Organizers frame it as part of Skybreaker Racing’s growing Northern California trail calendar. Visit the organization's website for the most recent information.