ADX Florence
Florence, Colorado, United States
ADX Florence, also known as the 'Alcatraz of the Rockies', is the most secure federal prison in the United States. It houses inmates deemed too dangerous or high-profile for other facilities.
Establishment image
No photograph in this directory
This profile lists factual fields from the current import only. We do not show generic or illustrative photos as stand-ins for named establishments.
Coordinates on file
38.3586, -105.0977
At a glance
- Security / category
- Supermax
- Operator
- Federal Bureau of Prisons
- Capacity
- 490
- Opened
- 1994
- Type (listing)
- Male Adult
What type of prison is ADX Florence?
This is a Supermax Male Adult establishment.
Overview
ADX Florence, also known as the 'Alcatraz of the Rockies', is the most secure federal prison in the United States. It houses inmates deemed too dangerous or high-profile for other facilities.
History
ADX Florence was opened in 1994 following a series of violent incidents at other federal prisons. It was designed to house the most dangerous, high-profile, and escape-prone inmates in the federal prison system.
Notable Inmates
ADX Florence houses some of America's most dangerous criminals including Ted Kaczynski (the Unabomber), Dzhokhar Tsarnaev (Boston Marathon bomber), Joaquín 'El Chapo' Guzmán, and Robert Hanssen (FBI spy).
Prison Life
Inmates spend approximately 23 hours per day in solitary confinement in 7×12 foot concrete cells. Limited human interaction and strict security protocols define daily existence at ADX Florence.
How to visit ADX Florence
Visits are extremely restricted and must be approved well in advance. All visits are non-contact and conducted through glass barriers. Policies differ between sites—check the official visitor information before you travel.
Planning your visit to ADX Florence
Arranging a visit usually starts with an official booking process rather than turning up unannounced. Check the latest visitor guidance from the operating authority before you travel, because policies are updated and can catch families out. Rules and practical steps vary between institutions; treat each establishment as its own case when you plan.
For a step-by-step overview, read how prison visits work — then confirm every rule with the operator for this establishment.
Contact details for ADX Florence
Our current import does not provide a reliable mailing address or switchboard number for this listing. Check the authority that operates the site for the correct contact points.
Where is ADX Florence located?
You will find ADX Florence in Florence, within Colorado, United States. Coordinates: 38.3586, -105.0977.
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