Treasure Island

• Man-Made Island: Treasure Island is not a natural formation—it was constructed in 1936–1937 from fill dredged from the bay for the 1939 Golden Gate International Exposition. • World's Fair Connection: The island was originally created to host the 1939–1940 Golden Gate International Exposition, showcasing San Francisco’s role as a gateway to the Pacific. • Naval Takeover: After the exposition, the U.S. Navy took control of Treasure Island in 1941, converting it into a naval station and training facility during World War II. • Gateway for Troops: During WWII, Treasure Island served as a major processing and embarkation point for over 4 million military personnel heading to the Pacific Theater. • Hollywood Ties: Several Hollywood movies, including The Matrix Reloaded and Indiana Jones and the Last Crusade, filmed scenes on Treasure Island. • Treasure Island Naval Station: The station housed the Naval Technical Training Center, where thousands of sailors trained in electronics, radar, and radio communications. • Cold War Role: Treasure Island played a crucial part in the Cold War, being home to the U.S. Navy’s West Coast electronic and communications training. • Decommissioning: The base was officially closed in 1997 as part of the Base Realignment and Closure (BRAC) process, ending over 50 years of continuous military use. • Environmental Legacy: Decades of military use left some areas contaminated with radioactive waste and hazardous materials, leading to ongoing cleanup and remediation efforts. • Urban Redevelopment: Today, Treasure Island is undergoing a massive transformation, with plans to turn the former military installation into a new San Francisco neighborhood with housing, parks, and commercial spaces.