26.19°N 100.5753°WDadan River is a right tributary of the Jinsha River in Yunnan, Southwestern China. It is 102.4 km long in total, with a watershed area of 1,888 square kilometers.
Dadan River rises in the western Binchuan County, the upper course is called Waxi River (Chinese: 瓦溪河, Wǎxī hé) or Binju River (Chinese: 宾居河, Bīnjū hé). The middle course of it is called Sangyuan River (Chinese: 桑园河, Sāngyuán hé) or Naxi River (Chinese: 纳溪河, Nàxī hé) and flows through the Binchuan County from south to north.
The lower course of it is located in southern Yongsheng County. The river has a length of 102.4 km and drains an area of 1,888 square km.[1]
The River has also spots for fishing such as Yongsheng, Lijiang, Yunnan.[2]