 Restoration efforts began in 1980 to halt the spread of invasive European Beachgrass ("Ammophilia arenaria").Originally inhabited by the Wiyot people, the Lanphere Dunes were under stewardship by new landowners, William and Hortense Lanphere in the 1930s.Along with European Beachgrass, Yellow Bush Lupine ("Lupinus" "arboreus"), another invasive species, was introduced from an adjacent property nearby.