BicycleTrails in Portola Valley

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Coal Creek Open Space Preserve (Portola Valley)

This preserve has about 500 acres of land and about five miles of dirt trails used by hikers, bicycles and horses.  On a clear day, one can see views of the Bay Area from the trailhead area at an elevation of 2300 feet.  The trails cover hilly grassland and lots of woods which provide a mixture of shade and sun.  There is limited paved parking at turnouts off of Skyline Blvd.  There is no drinking water, toilets or pay phone but there is an emergency call box.

Windy Hill Open Space Preserve (Portola Valley)

Windy Hill has about 1300 acres of land with about 12 miles of multiuse trails for hikers, bicyclists and equestrians.  Habitats include forested ridges, valley floors (Hamms Gulch, Eagle, Razorback Ridge, and Lost Trails), grassy ridges (Spring Ridge Trail) and spectacular views of the bay and surrounding valley (Anniversary Trail). The Betsy Crowder, Razorback, Lost, and Hamms Gulch Trails are open to horses and closed to bicycles all year round.

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