(California)
Los Osos Oaks State Natural Reserve is a California State Park in western San Luis Obispo County, in the Central Coast of California region. It preserves centuries-old coast live oaks growing atop relict sand dunes. It is located in the Los Osos Valley between San Luis Obispo and Baywood Park-Los Osos, just outside the town of Los Osos. The 85-acre (34 ha) park was established in 1972.