The Laguna Point to Latigo Point Area of Special Biological Significance (ASBS) is located in both Los Angeles and Ventura counties. It is the largest of the mainland ASBS in Southern California, with 24 miles of coastline and 11,842 acres of marine habitat. The State Department of Parks and Recreation administers many beaches and campgrounds in the northern and central sections, and Los Angeles County administers the beaches in the southern portion. Point Mugu Naval Base occupies the far northern portion of the coast and surrounds Mugu Lagoon.

Because of its proximity to some of California’s heaviest urban development, and it relatively large size, this ASBS faces key pollution threats from hundreds of direct discharges from roads, landscapes and businesses. There is also a threat from partly treated sewage and septic leachfields near beaches and Santa Monica Bay.

ASBS Area: 11,842 acres

Counties: Los Angeles and Ventura

Regional Board Area: Los Angeles RWQCB

Year designated: 1974 (Resolution 74-28)

ASBS Index No.: 24