The area grew very slowly, even after the Ocean Shore Railroad began serving the community in 1907. The construction of Pedro Mountain Road in 1914 provided better access to San Francisco and probably contributed to the railroad's demise by 1920. The USS "DeLong" ran aground at Half Moon Bay on December 1, 1921. During Prohibition "rum runners" took advantage of dense fog and hidden coves in the area to serve a number of roadhouses and inns, some of which operate today as restaurants (e.g., Moss Beach Distillery). Real growth in the area came after World War II with the construction of numerous subdivisions, eventually leading to Half Moon Bay's incorporation in 1959. The city preserves a historic downtown district that has buildings dating as far back as 1869.