It lies at the south part of Shuimo Region in south suburbs of Xining, and north of Huangzhong County. It covers an area of 30 square meters with 11.3km from south to north, 2.3km from east to west. This is a long and narrow river valley belt from southwest to northeast, so called it "Xining big Nanchuan". Xining is located in the eastern part of Qinghai province and lies on the Huangshui River. It is located on the eastern edge of Qinghai-Tibet Plateau and the upper reaches of Huangshui River.