District of Montana
The U.S. Marshals Service, District of Montana, contracts with various local holding facilities to meet it's housing needs of federal prisoners while they are going through their court proceedings. These facilities are required to meet certain federal standards, and placement of federal prisoners is based solely upon the needs of the Marshal's Service.
After sentencing, these prisoners are designated by the Federal Bureau of Prisons, and are sent to a long term facility. Where prisoners are sent are determined by the BOP, and prisoner information can be obtained at the BOP website; http://www.bop.gov /