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Alcatraz IslandAlcatraz Island ![]() ![]() island located ![]() ![]() ![]() San Francisco Bay, 1.5 miles (2.4 ![]() ) offshore ![]() ![]() ![]() San Francisco, California. Often referred ![]() ![]() The one and only Rock, ![]() ![]() small island early-![]() served ![]() lighthouse, military fortification, military prison, ![]() ![]() Federal Bureau ![]() Prisons federal prison until 1963. Later, ![]() 1972, Alcatraz became national recreation ![]() ![]() ![]() ![]() ![]() received landmarking designations in 1976 ![]() ![]() 1986.
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