Santa Margarita Lake
 Santa Margarita Lake also called Salinas Reservoir is a lake several miles southeast of the town of Santa Margarita in San Luis Obispo County California. The lake was created by the building of Salinas Dam on the southern end of the Salinas River very close to the river's origin in the Coast Range. The dam was built by the United States Army Corps of Engineers in 1941 to provide water for Camp San Luis Obispo. It now provides the city of San Luis Obispo with a portion of its drinking water.