Wikipedia: The Yuma Territorial Prison was a prison in the Arizona Territory in the United States. Located in Yuma, Arizona, the prison accepted its first inmate on July 1, 1876. For the next 33 years 3,069 prisoners, including 29 women, served sentences there for crimes ranging from murder to polygamy. The prison was under continuous construction with labor provided by the prisoners. In 1909, the last prisoner left the Territorial Prison for the newly constructed prison located in Florence, Arizona. It is now operated as an historical museum by Arizona State Parks as Yuma Territorial Prison State Historic Park, a state park of Arizona.