Historical Marker
The Largest Crowd
Historical marker location:
700 Clark Avenue, Saint Louis, Missouri
( Marker is on South Broadway south of Spruce Street, on the right when traveling south.)
July 30, 1994. Greatest Moments.
The Missouri State Penitentiary, located in Jefferson City, was once the oldest operating prison west of the Mississippi River. It opened in 1836 and closed in 2004.