Alcatraz Island, commonly referred to as simply Alcatraz or locally as The Rock, is a small island located in the middle of San Francisco Bay in California, United States. It served as a lighthouse, then a military fortification, then a military prison followed by a federal prison until 1963. It became a national recreation area in 1972 and received landmarking designations in 1976 and 1986.
History
The first Spaniard to discover the island was Juan Manuel de Ayala in 1775, who charted San Francisco Bay and named the island "La Isla de los Alcatraces," which translates as "The Island of the Pelicans,”.
It is home to the now-abandoned prison, the site of the oldest operating lighthouse on the west coast of the United States, early military fortifications, and natural features such as rock pools, a seabird colony (mostly Western Gulls, cormorants, and egrets), and unique views of the coastline.
Military history
On March 21, 1907, Alcatraz was officially designated as the Western US Military Prison. In 1909 construction began on the huge concrete main cell block It was completed in 1912
Due to its isolation from the outside by the cold, strong, hazardous currents of the waters of San Francisco Bay, Alcatraz was used to house Civil War prisoners as early as 1861. In 1898, the Spanish-American war would increase the prison population from 26 to over 450.
Escape attempts
During its 29 years of operation, the penitentiary claimed no prisoners as having ever successfully escaped. 36 prisoners were involved in 14 attempts, two men trying twice; seven were shot and killed, and two drowned. The most violent occurred on 2 May 1946 when a failed escape attempt by six prisoners led to the so-called "Battle of Alcatraz".
On June 11, 1962 Frank Morris, John Anglin and Clarence Anglin successfully carried out one of the most intricate escapes ever devised. Behind the prisoners' cells in Cell Block B (where the escapees were interned) was an unguarded 3-foot (0.91 m) wide utility corridor. The prisoners chiseled away the moisture-damaged concrete from around an air vent leading to this corridor, using tools such as a metal spoon soldered with silver from a dime and an electric drill improvised from a stolen vacuum cleaner motor. The noise was disguised by accordions played during music hour, and their progress was concealed by false walls which, in the dark recesses of the cells, fooled the guards.
Due to rising operational costs, the Military decided to close the prison in 1934, and ownership shifted to the Department of Justice.
