The Best Mountain Biking Trails in Marin County

China Camp is one of only two significant mountain bike-legal trail systems remaining in Marin County, the purported birthplace of mountain biking. As such, this trail network is worthy of a place in most mountain bikers’ lexicons, even if it doesn’t stand up to nearby Camp Tamarancho....

Tennessee Valley Trail is a very popular hiking and biking path in Marin Headlands. The trail lead through a glen of rolling green, and it culminates at a dark-sand beach between golden cliffs....

Camp Tamarancho is one of only two significant bike-legal trail systems in Marin County, the purported birthplace of mountain biking. But not only that, it’s arguably the best mountain bike trail in the entire San Francisco Bay Area! The singletrack through Tamarancho is narrow, smooth, and mostly quite flowy....