By carbon-14 dating of remains in stoneware found at ruins at Sanlong Mountain in Ar Horqin Banner, the ruins were dated as at least 50,000 years old, from the middle-paleolithic period. The stoneware includes tools with sharp ends or edges believed to have been used for cutting and peeling,
CAS news release, November 2, 2017
Inner Mongolian ruins confirmed by C14-dating of middle paleolithic age