The North River (Chinese: 北河; pinyin: Běihé), full name Rongjiang North River (榕江北河), also known as Tang River (湯溪; Tāngxī), is located in the southeast of Guangdong Province, the People's Republic of China. The river, 92 kilometers long, is the largest tributary of the Rong River. It is named North River because it flows through the north of the urban area of Jieyang City. [1]