Fairfield, California
Rockville Hills Regional Park is a favorite for hikers and mountain bikers, featuring oak woodlands and volcanic rock formations.
Volcanic rock trails; scenic views; diverse wildlife; Lake Rockville.
Go mountain biking; hike the trails; enjoy a picnic; birdwatch.
Year-round.
Pass required (daily or annual).
Parking; trails; restrooms (limited).
Mountain bikers love the technical rocky trails here.
Fairfield; Green Valley.