Featuring many of Marin County's most famous trails — Steep Ravine, Matt Davis, and the Dipsea — the Headlands 27k provides a spectacular setting for this lightning fast trail race on the infamous Mt. Tamalpais and through the iconic Muir Woods. Just minutes from downtown San Francisco, the course boasts approximately 4,000 feet of elevation gain featuring ripping fire roads, steep climbs, flowy single track, technical rooted sectors, and stunning views of the entire Bay Area, Pacific Ocean, and beyond.