City: Walnut Creek Park: Castle Rock Regional Recreation Area
TIME CHANGE! Rain cancels.Contact: John Bondon
From Walnut Creek, head east towards Concord on Ygnacio Valley Road. Turn RIGHT onto Oak Grove Road.
From Concord, venture on Ygnacio Valley Road westbound down the hill into Walnut Creek. Turn LEFT onto Oak Grove Road.
OAK GROVE ROAD becomes CASTLE ROCK ROAD at turn-about (at Walnut Avenue). Proceed Straight thru turnabout onto Castle Rock Road. Go past Northgate High School. Continue to the end. Park in the dirt, near entrance to Castle Rock Park. On busy days when trailhead parking spaces are full, additional parking is available in the dirt overflow parking area on the right side, approximately 0.3 miles prior to reaching the end of the road.
GPS Address: 1700 Castle Rock Rd, Walnut Creek, CA 94598