Pyramid Lake (Los Angeles County, California)
General data
- Name: Pyramid Lake (Los Angeles County, California)
- Water system: Pacific Ocean
- Water type: Artificial lake
- Progression: Piru Creek -> Santa Clara River (California) -> Pacific Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Pyramid Lake is a reservoir formed by Pyramid Dam on Piru Creek in the eastern Topatopa Mountains, near Castaic, Southern California. It is a part of the West Branch California Aqueduct, which is a part of the California State Water Project. Its water is fed by the system after being pumped up from the San Joaquin Valley and through the Tehachapi Mountains.