It was originally opened as a fortress to protect the entrance of the San Francisco Bay from anyone who might want to gain control of the bay, most especially the British Navy. The bay had become the most valuable port in the world almost overnight in 1848 because of the Gold Rush.
March 21, 1963
1933
1934
Alcatraz was a prison in sanfransisco bay
it is a prison
Alcatraz Prison
Alcatraz was used as a prison.
The Alcatraz prison is a prison located on Alcatraz Island located in the San Francisco Bay exactly 1.5 miles from San Francisco.
Alcatraz
Alcatraz.
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Alcatraz
Alcatraz island.
Technically, Alcatraz is an island. The structure referred to, Alcatraz Federal Penitentiary, was a federal prison. The prison has long since been decommissioned as impractical due to the cost of upkeep. Alcatraz Island is now a national park, and the prison is a museum. It is open to the public and guided tours are offered of the island and facilities.