'gannet ("the diver")'] or The Rock) was a maximum security federal prison on Alcatraz Island, 1.25 miles (2.01 km) off the coast of San Francisco, California, United States, the site of a fort since the 1850s; the main prison building was built in 1910–1912 as a United States Army military prison.
In its heyday, it was the ultimate maximum security prison. Located on a lonely island in the middle of San Francisco Bay, Alcatraz—aka “The Rock”—had held captives since the Civil War.
The United States Disciplinary Barracks on Alcatraz were acquired by the United States Department of Justice on October 12, 1933, and the island became a federal prison in August 1934. Alcatraz was designed to hold prisoners who continuously caused trouble at other federal prisons. 
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Aug 13, 2019 · Building a high-security prison elsewhere was more affordable for the Federal Government, and as of 1963 “Uncle Sam’s Devil’s Island” was no more. Today, the equivalent of the infamous federal prison on Alcatraz Island is a maximum-security institution in Florence, Colorado. It is nicknamed “Alcatraz of the Rockies”.
The upper prison now had a capacity of 307 inmates, more than enough for the average number of prisoners then on Alcatraz. Although the Alcatraz quartermaster submitted a request in July 1905 to demolish the three wooden cell buildings of the old prison, the various units of the complex continued to function for several more years.
Alcatraz Island, also known as ‘The Rock,’ a rocky island in San Francisco Bay, off the coast of California, in the United States. From 1934 to 1963, a facility on the island served as a federal prison for some of the most dangerous civilian prisoners. Learn more about the history of Alcatraz Island here.
- Extreme Punishment. At the best of times, conditions in Alcatraz were not exactly a barrel of laughs, but there was a particularly harsh punishment for prisoners who refused to follow the rules of the prison.
- Battle of Alcatraz. The Battle of Alcatraz, or the “Alcatraz Blastout” as it was also known, took place between May 2nd and 4th, 1946. Six prisoners managed to get hold of weapons and cellhouse keys, but there was a minor hitch in their plans.
- Mysterious Death. There were many stories of paranormal activity in Alcatraz, and one particular incident occurred in Cell 14D. Sometime in the 1940s, a prisoner who was locked in the cell screamed all night that something with glowing eyes was trying to kill him.
- You’ve Gotta Have a Hobby. Stroud was sent to prison for killing a bartender who attacked one of his prostitutes when he was a pimp, and he quickly became known as a violent and dangerous inmate.
Mar 19, 2020 · Alcatraz Prison in San Francisco's Bay closes down and transfers its last prisoners. At its peak period of use in 1950s, “The Rock," or "America’s Devil Island," housed over 200 inmates at the ...
- Escape from Alcatraz. Alcatraz Island has been used as a site for several films including: Birdman of Alcatraz (1962), The Enforcer (1976), Escape From Alcaltraz (1979), Murder in the First (1995), The Rock (1996), Catch Me If You Can (2002), X-Men: The Last Stand (2006), and The Book of Eli (2010).
- ALCATRAZ HISTORY.
- Alcatraz Discovery. The island was first documented in 1775 by Spanish explorer, Juan Manuel de Ayala. Juan Manuel de Ayala had mapped the San Francisco Bay and called this particular island “La isla de los alcatraces”, meaning “Island of the Pelicans”, because the Island was home to large colonies of brown pelicans.
- Alcatraz Military Outpost. In 1846, John C. Freemont, Military Governor of California, purchased Alcatraz Island on behalf of the United States Government from Mexican Governor, Pio Pico, for $5,000.