Caleb Crosby Threshing Barn: Oxen once generated the threshing machine inside the main building. The barn stood for about 100 years along the north side of the Holston River. The land was to be flooded by the building of Cherokee Dam, so the family donated the barn to the National Park Service. The barn remained there dismantled for 34 years. In 1978, the barn was reconstructed at its present site.