A new round of comprehensive surveys has so far discovered more than 500 ancient cliff paintings in northwest China's Helan Mountains. The mountains are home to over 20,000 such works, created by ancient people and depicting over 100 types of natural imagery, as well as scenes from their daily lives. #China #Archaeology #RockArt #Petroglyphs #AncientArt #HelanMountains #Ningxia #History #Discovery
