The Ch'ongch'on is a river of North Korea having its source in the Rangrim Mountains of Chagang Province and emptying into the Yellow Sea at Sinanju. The river flows past Myohyang-san and through the city of Anju, South P'yongan Province. Its total length is 217 km (135 mi), and it drains a basin of 9,553 km² (3,688 sq mi).