Hong River (Huai River tributary)

Hong River is a major tributary river of Huai River system. Its source is on the western slope of Dengtaijia Peak near the border between the city of Wugang and Biyang County of Henan province. If flows for about 326 kilometers before meeting the Huai River near the provincial border between Henan and Anhui provinces. The lower section of Hong River is also called Hongru River or Ru River. Suya Lake on Hong River is the largest reservoir on the plain in China.