The Colorado State Penitentiary, known as "Old Max," opened in 1871 as part of the federal prison system while Colorado was still a territory, and convicts built it with stone quarried and cut on-site. When Colorado achieved statehood in 1876, "Old Max" was deeded to the state. It was the first of seven state and four federal prisons now located in Fremont County. As the state's maximum security prison, it at one time held more than 2,000 prisoners, and as the Colorado Territorial Correctional Facility it is now a medium security prison confining 900 male inmates. After his larceny conviction, John Shepler entered on June 13, 1871, as Prisoner No. 1. Other notorious inmates included Alfred Packer, Henry Starr, and James Sherbondy, who took part in the December 1947 mass escape of 12 desperate prisoners later depicted in the motion picture "Canon City." Female escapee Jean Anderson, like many male escapees, remained free for only one day. "Old Max" also held the youngest inmate ever incarcerated in the state, 11-year-old Antone Wood, who murdered a man for his shiny gold watch in 1893. Cell house No. 4, now housing the Museum of Colorado Prisons, was built by Warden Roy Best in 1935 as the first women's cell house built outside the prison walls, and it remained in continuous use until 1968.