Bard Lake, also known as Wood Ranch Reservoir, is a 231-acre (93 ha) reservoir which is the largest lake in Simi Valley, California. It is east of the intersection of Olsen Road and Moorpark Freeway, near the border between Simi Valley and Thousand Oaks. Built in 1965, Bard Lake is 416 feet (127 m) high with a capacity of 11,000 acre-feet (3.6×109 US gal). It is an earthen dam which is owned by the Calleguas Water District.