Cheonjeon-ri Gakseok Valley in Ulsan is a rock art site where Neolithic drawings, Silla-era engravings, and dinosaur footprint fossils can be seen, located about 1.2 km from Bangudae Petroglyphs. The valley trail connects to Bangudae Petroglyphs, and the walk between the two sites takes 30 minutes. Parking space is limited.