The Michigan Reformatory was a state prison for men, located in Ionia, Michigan. The facility closed in 2000, and then reopened in 2007. It was again closed in 2022 due to declining inmate numbers. [Wiki]
Photo info: A postcard view of the Michigan Reformatory from around 1920.
The power house, which appears to be on the north side of the building, was likely served off the PM branch going north from Ionia. [CalTopo]
The following sources are utilized in this website. [SOURCE-YEAR-MMDD-PG]:
