Sweetwater Reservoir

Sweetwater Reservoir is a 960 acre artificial lake in San Diego County, California, formed by the Sweetwater Dam on the Sweetwater River. Construction of the dam was completed in 1888.

Environment
The area surrounding the reservoir is home to several species, including least Bell's vireo and the California gnatcatcher. It lies near the census-designated places of Bonita, La Presa and Spring Valley. The drainage basin it forms along with Loveland Reservoir covers 230 sqmi.