About this Unit
**Treasure Island** was established in 1941 as a United States Navy facility located in the San Francisco Bay, California. Originally constructed on an artificial island for the 1939 Golden Gate International Exposition, it was quickly converted into a naval base with the outbreak of World War II. During the war, Treasure Island served as a crucial center for naval training, processing, and embarkation, handling hundreds of thousands of sailors headed for the Pacific Theater. After the war, the base continued to operate as a communication, administrative, and training hub until its closure in 1997, leaving behind a legacy as a key logistical and personnel support site for the U.S. Navy.
Historical Facts
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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.
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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.
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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.
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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.
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Hollywood Ties: Several Hollywood movies, including The Matrix Reloaded and Indiana Jones and the Last Crusade, filmed scenes on Treasure Island.
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Treasure Island Naval Station: The station housed the Naval Technical Training Center, where thousands of sailors trained in electronics, radar, and radio communications.
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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.
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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.
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Environmental Legacy: Decades of military use left some areas contaminated with radioactive waste and hazardous materials, leading to ongoing cleanup and remediation efforts.
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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.