Canyon Lake is a city and gated
community on Canyon Lake reservoir, located in western Riverside County, California. It is one of five gated incorporated cities currently in
California. Canyon Lake began as a master-planned community developed by Corona Land Company in 1968. The “City of Canyon Lake” was incorporated on December 1, 1990. Railroad Canyon Dam
was built in 1927, and impounds the San Jacinto River to
fill the reservoir, which covers 383 acres and has 14.9 miles of shoreline.
The community is named for Canyon Lake reservoir, also known as the Railroad Canyon Reservoir, which it surrounds. The reservoir,
created in 1928 with the construction of the Railroad Canyon Dam, has a storage capacity of 11,586 acre feet. It is owned and operated by the Elsinore Valley Municipal Water District. The reservoir is supplied by storm
water runoff from the San Jacinto River and Salt Creek. Water from the reservoir
feeds the Canyon Lake Water Treatment Plant, which provides approximately 10% of the domestic water supply in the Lake
Elsinore/Canyon Lake area.