The Qinghai Lake basin has many prehistoric cultural sites with ages of the late Pleistocene. On the east and northeast of the basin,there are the Loula reservoir, Yantaidong, Bronze Wire, and other sites., and on the south of the basin, there are the Jiangxigou and Heimahe Sites, which date back to 14-13 Cal ka BP (Brantingham and Gao, 2006).