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Design of a cell at Florence Artist's view of the cell. ADX Florence is a 37-acre (15 ha) complex located at 5880 Highway 67, in an unincorporated area, with a Florence, Colorado, postal address. It is located about 100 miles (160 km) south of Denver and 40 miles (64 km) south of Colorado Springs.
- November 1994 (soft opening), January 1995 (full opening)
- Operational
- 337 inmates (October 2023)
- Jerilyn Forsythe
- Terry L. Nichols. Domestic terrorist/Oklahoma City bomber, serving 161 consecutive life sentences. Terry L. Nichols met Timothy J. McVeigh while the pair were serving in the U.S. Army in the late ’80s.
- Robert P. Hanssen. Soviet spy, serving 15 consecutive life sentences. Robert P. Hanssen was an FBI agent for 25 years (1976–2001). During that time, he sold thousands of classified documents to Soviet and Russian intelligence, pocketing at least $1.4 million by the time he was caught in 2001.
- Ramzi Ahmed Yousef. One of the 1993 World Trade Center bombers; serving life plus 240 years. On February 26, 1993, a 1,300-pound nitrate-hydrogen gas bomb was detonated in the parking garage of the North Tower of the World Trade Center in downtown New York City, killing six people and injuring thousands.
- Richard Lee McNair. Master escapist, serving life but could be transferred to state prison. This Oklahoma man was convicted of murder, attempted murder, and burglary, for which he received two life sentences, but that’s not what would put him in ADX.
May 1, 2023 · USP Florence ADMAX is an administrative security prison for male inmates in Fremont County, Colorado. It is part of the Florence Federal Correctional Complex and offers visiting, mail, commissary, legal and other resources for sentenced inmates.
May 23, 2022 · ADX Florence is the only federal "Supermax" prison, where inmates are locked in solitary confinement for 23 hours a day. Learn about the history, security and controversies of this controversial facility that houses the most dangerous and escape-prone criminals.
- Dave Roos
Jan 29, 2020 · ADX Supermax is a super-maximum security federal prison in Florence, Colorado, that houses inmates who are too dangerous or too influential for other prisons. Learn about its six units, cells, meals, programs, and security measures that make it one of the most secure prisons in the world.
- Charles Montaldo
Jul 19, 2019 · ADX Florence, also known as the "Alcatraz of the Rockies," is a supermax facility for violent and escape-prone inmates. Learn about its design, history, and notorious residents, such as El Chapo, the Sinaloa cartel leader.
Mar 26, 2015 · Florence, a faded Colorado mining town, lobbied hard for the $60 million prison to be built within its city limits, with residents eventually donating 600 acres of land to the B.O.P. The ADX...
