The troposphere is the portion of the Earth's atmosphere that extends from the surface of the Earth to a height of about 3.7 miles (6 km) at the North Pole or the South Pole and 11.2 miles (18 km) at the equator.
A correctional facility is the building that many criminal justice systems use to detain offenders. These facilities may hold accused people prior to trial, convicted criminals, juvenile offenders, and other types of individuals.
The Federal Bureau of Prisons classifies prisons into several categories: United States Penitentiaries Federal correctional institutions Private correctional institutions Federal prison camps Administrative facilities Federal correctional complexes This list does not include military prisons, state prisons, jails, or prisons operated under contract with local governments. It also does not include detention centers and facilities and processing centers run by Immigration and Customs Enforcement.