A part of the State Water Project, Silverwood Lake is in the San Bernardino Mountains in Southern California. The reservoir stores water for Inland Empire cities such as San Bernardino and Riverside. The water is conveyed from the A.D. Edmonston Pumping Plant via the East Branch Aqueduct. According to the California Department of Water Resources, “Silverwood Lake was formed in 1971 by the 249 foot high Cedar Springs Dam. It is situated at 3,350 feet, the highest elevation of any reservoir in the State Water Project.”