Lots of great single track sections taking shape just off the main trail path (at Sullivan Canyon in Brentwood, CA., thanks to mtbrs blazing them! At least THESE sections won't ever be bulldozed...or at least it's unlikely since they don't interfere with the gas co.'s access.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Single track MUni