From Wikipedia, the free encyclopedia LocationSan Francisco Bay, California Coordinates37°49′36″N 122°25′24″W[1] StatusClosed (now a museum) Security classMaximum Capacity312 Opened11 August 1934; 85 years ago Closed21 March 1963; 57 years ago Managed byFederal Bureau of Prisons, Department of Justice Director Wardens[2] James A. Johnston (1934–48) Edwin B. Swope (1948–55) Paul J. Madigan (1955–61) Olin G. Blackwell… Continue reading San Francisco Bay, California, Alcatraz Island, Prison, Alcatraz Federal Penitentiary