Huangshui River

The Huang Shui is shown combining with the Datong River just west of Lanzhou

The Huangshui River, Huang Shui, or Tsong Chu is a river in Qinghai and Gansu, China. It is a left tributary of the Yellow River and its total length is 374 km (232 mi) with a basin area of 3,200 km2 (1,200 sq mi).[citation needed]