The North Santa Monica Bay Watersheds are approximately 200 square miles comprised of the Malibu Creek Watershed, Topanga Creek Watershed, and other rural Santa Monica Mountains Watersheds.
These watersheds are located in the northwest corner of Los Angeles County bounded on the north, west, and east by the Santa Monica Mountains, and on the south by the Pacific Ocean. The watersheds are comprised of all or parts of the Cities of Agoura Hills, Calabasas, Malibu, Westlake Village, and Thousand Oaks, and unincorporated Los Angeles and Ventura Counties.
