Located in the beautiful East Bay hills, Castro Valley Christmas Tree Farm is located on Redwood Rd. at Miller Rd. just north of Castro Valley, 1 mile past the entrance to Willow Park Gulf course. From 580 East, take the Redwood Rd. exit, turn left (North) on Redwood Road and go 3 miles. From 580 West take the Redwood Rd. Exit, turn right (North) on Redwood Rd. and go three miles.  Follow the orange "TREE FARM" signs.