San Francisco, California Mountain Biking Trails

San Francisco has 23 mountain biking trails. These trails range from 0.6 to 24 miles in length. The most popular trails are Marin Headlands, Tour of San Francisco and the Golden Gate and Mount Sutro: Mount Sutro Out-and-Back Trail. Trails.com member Howard L. recently completed Sweeney Ridge: The Portolá Discovery Site.

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