Round Valley Regional Preserve is a 700- acre grassland, oak woodland, savannah, and shrub land full of wildlife that was once home to Californian Indians. The preserve is available for hiking, horseback riding, biking, and camping. There is a 25 person maximum for one group camping site and all reservations must be made at least five days in advance.
Location: 19450 Marsh Creek Road, Brentwood 94513
Contact Info: 888-327-2757