It was refired in 1863 when a representative of the Tredegar Iron Works of Richmond requested that they aid the Confederacy. In 1864, the furnace was destroyed by Brigadier General Alfred N. Duffie as part of an assault on Mount Torry, though it would be rebuilt the next year and continue production. Its final retirement would be in 1884.
The Mount Torry Iron Furnace is a notable example of early United States iron production, radically different from the steel mills of the turn of the 20th century. It was added to the National Register of Historic Places in 1974.