 Long Hunter State Park officially opened in 1978.The Sellars Mound site, which had been excavated by Peabody Museum curator Frederic Putnam in the late 1870s, was added to the National Register of Historic Places in 1972 and purchased by the state of Tennessee in 1974.In the late 1990s, the Friends of Sellars Farm State Archaeological Area was formed by volunteers who began promoting the site and offering tours.