The Badger Army Ammunition Plant or Badger Ordnance Works (B.O.W.) is an excess, non-BRAC, United States Army facility located near Sauk City, Wisconsin. It manufactured nitrocellulose-based propellants during World War II, the Korean War, and the Vietnam War. It was a large munitions factory during World War II. As of 2013, the facility was in the end stages of demolition and remediation in preparation for property transfer.