A huge cluster of ancient rock drawings has been discovered in northern China's Inner Mongolian Autonomous Region. Through the help of local herdsmen, the over one thousand drawings from the Bronze Era were discovered about 55 kilometers west of Hailiutu county. Most of the drawings are carved on black granite along the mountainsides. The drawings stretch about five kilometers into a valley near the Bayinhudu mountain. The pictures are drawn mainly from daily life. There is a wide of subjects from goats, longhorn-deer and dogs. There are hunting scenes and some mysterious symbols. Most of the drawings are large. Some single pieces contain dozens of patterns. One shows a deer hunt, in an elaborate work rarely found among ancient rock paintings in China. Liu Bin, the curator of the local Wulatezhong qi museum says the drawings date back to about three thousand years ago -- during of the Bronze Era. The discovery, no doubt, will provide a great deal of knowledge about the lives of ancient herdsmen.