Zane's Old (Stephens Fort, Marlboro Iron Works) Iron Smelt Mill (United States)

During the American Revolution, Zane’s furnace, also called Marlboro Iron Works, was one of the largest suppliers of ordnance to the Continental Army.

During the Revolutionary War, Zane’s Marlboro Iron Works became a munitions factory producing four- and six-pound ordnance, shot, langrage, swivel balls, and chain shot.