Cornwall Furnace was built between 1862 and 1863. It was a cold blast furnace used to produce pig iron for the civil war. It was small, but a major assist to the confederate states in the production of cannons and other types of military equipment.
However, its glory was short lived. General Sherman occupied the area and had the furnace destroyed in 1864. It was rebuilt after the war, but was only operational for seven years.