Haven Township near St. Cloud in Sherburne County, Minnesota — The American Midwest (Upper Plains)
These Walls Do Talk
The Minnesota State Reformatory for Men was constructed in stages from 1889 to 1922. The facility, designed to hold 1,000 inmates, was originally a prison for young offenders, 16 to 30 years old, with the intent of transforming them into productive citizens.
The site of the prison was purposefully chosen to be near Minnesota's oldest commercial granite quarry, which had begun operations in 1868. In the spirit of teaching useful skills to inmates, prisoners were taught to quarry, cut, dress, and lay stone building the very facility in which they would be housed while learning skills that would be useful upon release. Today, the prison continues to house approximately 1,000 adult male prisoners behind the imposing granite walls that separate the inmates from the public.
Administration Building under construction, 1917.
World's Longest Granite Wall
The massive granite walls were intended to be intimidating sending a message to citizens and criminals that the state of Minnesota was serious about protecting the public from crime and criminals. The imposing 22-foot high stone wall, finished in 1922, was constructed completely by inmates. The wall is four feet thick at its base, tapering to three feet at its top. Armed guards watching from commanding guard towers reinforce the prison's formidable purpose.
Quarrying granite to make the state prison, 1914.
Outstanding Architecture
Complementing the prison walls are several buildings designed in the Richardsonian Romanesque style heavy, massive stone buildings reminscent of mediaeval castles and fortifications from 12th Century Norman France. Many of these buildings including the administration building, guard towers and one of the cell blocks were designed by one of Minnesota's premier architects, Clarence H. Johnston. Johnston also designed several buildings on the campuses of the University of Minnesota, including Northrup Auditorium and Williams Arena, the Grandstand at the Minnesota State Fair Grounds, St. Paul's Central High School, and the Glensheen mansion in Duluth.
Clarence H. Johnston, Sr.
(1859 - 1936)
State Architect
Richardsonian Romanesque Architecture of the Minnesota State Prison in St. Cloud.
Manufacturing License Plates (1954). License plates were made at the St. Cloud prison until 2008, when stamping was replaced by printing.
The
stone waste created during the building of the prison was crushed into rubble for the construction of nearby state highways.
Originally, inmates released from Minnesota's prisons received a horse, saddle, rifle and a gold piece to help them integrate back into society.
Topics and series. This historical marker is listed in these topic lists: Architecture • Law Enforcement. In addition, it is included in the Minnesota Great River Road series list. A significant historical year for this entry is 1889.
Location. 45° 32.451′ N, 94° 6.421′ W. Marker is near St. Cloud, Minnesota, in Sherburne County. It is in Haven Township. It is on U.S. 10 east of Minnesota Boulevard (County Route 301), on the right when traveling west. Marker is at the Sand Prairie Wildlife Management Area, in a small interpretive plaza a few steps from the parking area. Touch for map. Marker is at or near this postal address: 1805 U.S Highway 10, Saint Cloud MN 56304, United States of America. Touch for directions.
Regionally, this marker is in the Twin Cities Metropolitan Area. It is also in the American Midwest, in the Corn Belt, and in the Great River Road Region. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once Ruperts Land and also the territory of the Mississippian Culture.
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies: Historic Wayside / Maintaining Our Natural Heritage (here, next to this marker); Prairie Savanna (within shouting distance of this marker); First Granite Quarry (within shouting distance of this marker); a different marker also named The First Granite Quarry (approx. Ύ mile away); The Red River Trail (approx. 0.8 miles away); Fort Holes (approx. 2.3 miles away); Petters Building (approx. 2.8 miles away); B.P.O.E. Building (approx. 2.8 miles away). Touch for a list and map of all markers in St. Cloud.
Credits. This page was last revised on February 20, 2026. It was originally submitted on December 18, 2022, by McGhiever of Minneapolis, Minnesota. This page has been viewed 759 times since then and 85 times this year. Photos: 1, 2. submitted on December 18, 2022, by McGhiever of Minneapolis, Minnesota. • J. Makali Bruton was the editor who published this page.

