Alcatraz - Prison

The United States Disciplinary Barracks on Alcatraz was acquired by the United States Department of Justice on October 12, 1933, and the island became a Federal Bureau of Prisons federal prison in
August 1934. During the 29 years it was in use, the jail held such notable criminals as Al Capone, Robert Franklin Stroud (the Birdman of Alcatraz), George "Machine Gun" Kelly, James "Whitey" Bulger, Bumpy Johnson, Rafael Cancel Miranda, member of the Puerto Rican Nationalist Party who attacked the United States Capitol building in 1954, Mickey Cohen, Arthur R. "Doc" Barker and Alvin Karpis (who served more time at Alcatraz than any other inmate). It also provided housing for the Bureau of Prison staff and their families.

Because it was far more expensive to operate than other prisons (nearly $10 per prisoner per day, as opposed to $3 per prisoner per day at Atlanta), and due to half a century of salt water saturation which severely eroded the buildings, the penitentiary was closed on March 21, 1963 by decision of Attorney General Robert F. Kennedy. Another contributing factor for the closure was the pollution produced by the sewage deposited into San Francisco bay from the approximately 250 inmates and 60 Bureau of Prisons families on the island. The United States Penitentiary in Marion, Illinois, a traditional land-bound prison, opened that same year to serve as a replacement for Alcatraz.

The entire Alcatraz Island was listed on the National Register of Historic Places in 1976, and was further declared a National Historic Landmark in 1986. In 1993, the National Park Service published a plan entitled Alcatraz Development Concept and Environmental Assessment. This plan, approved in 1980, doubled the amount of Alcatraz accessible to the public to enable visitors to enjoy its scenery and bird, marine, and animal life, such as the California slender salamander.