The Barnesville Petroglyph petroglyph site in the eastern part of the U.S. state of Ohio. Located approximately 3 miles (4.8 km) southwest of the village of Barnesville in Belmont County, the petroglyphs have been known both by archaeologists and the general public since the 1850s or earlier. Although the site was significantly damaged during the twentieth century, it is still a significant archaeological site, and has been named a historic site.