From the record
“Cornwall Furnace is located near Cedar Bluff, Alabama, United States, in Cherokee County. It was built by the Noble Brothers to supply iron products to the Confederate States of America during the American Civil War.”
Wikipedia article Cornwall Furnace (Cedar Bluff, Alabama), CC BY-SA 4.0.
One of 1 National Register listings published here for Cherokee County · listed in 1972 · category: Structure · built in 1863.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article