On June 21, 2012, as part of their tour of prehistoric earthen mound sites in eastern North America, over 20 members of the Prehistoric Society of Great Britain visited two prehistoric rock art sites—Piney Creek Ravine and Millstone Bluff—in southern Illinois. The tour was organized and led by Pete Topping of English Heritage. ESRARA members Mark Wagner (Southern Illinois University) gave them a tour of the Piney Creek site, the largest rock art site in Illinois in terms of the number of images, … [Read more...] about British Archaeologists Tour Southern Illinois Rock Art Sites