Dane Michael Big Head has been reported as a walkaway/escapee from the Great Falls Pre-Release Center.
Big Head left the GFPRC at 12:18 p.m. on Tuesday and was scheduled to return at 5 p.m., but failed to return.
He was last seen wearing a long-sleeved white dress shirt, blue jeans, and black tennis shoes.
According to the Montana Department of Corrections, Big Head has convictions in Yellowstone County for burglary and assault.
Anyone who sees Big Head or has information about his location is asked to call the GFPRC at 406-727-0944, or the Great Falls Police Department at 406-727-7688.
The GFPRC is located at 1019 15th Street North.
The facility is a operated by private non-profit group contracted by the Montana Department of Corrections and the federal Bureau of Prisons.
They typically house about 240 men and women at a time and all of those residents are required to hold full-time jobs in the community.
Along with work, residents must fulfill any legal obligations such as fines or substance abuse treatment.
Most only stay at the center for about six months before they are allowed to return to life in the community.