Piney Creek South Site is a prehistoric rock art site in Piney Creek Ravine State Natural Area in southwestern Illinois, centered on a sandstone rockshelter where Native people carved two groups of petroglyphs during the Late Woodland period, about 450 to 900 A.D. The larger group includes human-like figures, a deer-like quadruped, crosses, and pits, while the smaller group contains anthropomorphs, a line of pits, and a pecked area. Unusual features such as wings, shields or rattles, a beak-like form, and a possible penis suggest figures interpreted as shamans, indicating ceremonial or spiritual significance. The site was added to the National Register of Historic Places on May 31, 2001.