From the record
“Cowpens National Battlefield is a unit of the National Park Service just east of Chesnee, South Carolina, and near the state line with North Carolina. It preserves a major battlefield of the American Revolutionary War.”
Wikipedia article Cowpens National Battlefield, CC BY-SA 4.0.
One of 14 National Register listings published here for Cherokee County · listed in 1966 · category: District · built in 1929.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

