China's national cultural relics protection units. Liuwan, on the north bank of the Lishui River, 15 kilometers east of Gaomiao Town, Ledu County, more than 50 kilometers from Xining, the capital of Qinghai Province, the cemetery is located on the white soil slope of the mountain behind the village. It is a public cemetery burial group in the late primitive society, and is also a representative of the Neolithic Majiayao culture. The burial items of Liuwan Tomb include pottery, decorations and sea shells. Unearthed human face and colorful statues of color pottery pot. The latter paste a naked portrait on the surface of the pottery pot, painted and painted, highlighting the characteristics of the sexual part, is a religiously significant worship.