Treasure Island is an artificial island which is part of San Francisco. It was constructed between 1937-1938 with sand from the Bay by the Federal government as the site for the 1939 Golden Gate International Exposition. In 1941 Treasure Island became part of Naval Station Treasure Island, which also included Yerba Buena Island. In 1993, the Defense Base Closure and Realignment Commission recommended the closure of the Naval Station, and the majority of Treasure Island has since been transferred to the Treasure Island Development Authority and is in the process of being redeveloped. 

Treasure Island was designated as California Registered Historical Landmark No. 987 on November 20, 1989.  

An official plaque was placed the the State Department of Parks and Recreation in cooperation with the U. S. Navy, Treasure Island Museum, GGIE Research Associates, and the Art Deco Society of California on February 18, 1990.

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