Alpine Road Trail is a hiking trail in Portola Valley, California. It is within Coal Mine Ridge Park and Windy Hill Open Space Preserve (closed area). It is two miles long and begins at 681 feet altitude. Traveling the entire trail is 4.0 miles with a total elevation gain of 477 feet. The Coal Mine Ridge Trails information map is near the trailhead. There are also information guideposts and parking. Along the trail there are drinking waters.
Alpine Road Trail Professional Review and Guide
"Alpine Road is a smooth road with a wide bike lane, leading through beautiful Portola Valley, favored by the many cyclists and equestrians usually found here on weekends. A relatively little-known route takes what normally would be a road bike ride and changes it dramatically into a wonderful mountain biking experience. In Windy Hill, there is only one trail open to bikes and that one, Spring Ridge Trail, takes you all the way down the mountain. While you pass through the open meadows on the mountainside, be sure to stop periodically to savor the views of the valley ahead and below you. The end of the trail will dump you onto Portola Road, where you can join up with the "roadies" for the return to Alpine Inn."
--Conrad Boisvert, Bay Area Mountain Bike Trails (Penngrove Publications).
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