Fujiang: A tributary of Jialing River and a secondary tributary of Yangtze River, with a wide drainage area, originated from Xuebaoding, the main peak of Minshan Mountain between Songpan County and Pingwu County in Sichuan Province. Fujiang River flows through Pingwu County, jiangyou city City, Mianyang City, Santai County, Shehong County, Suining City, Tongnan County of Chongqing City and other areas, and joins Jialing River in Hechuan District of Chongqing City. The main tributary 10, except Huoxi River and Zitong River, flows out from the left bank, and all other main tributaries flow out from the right bank, forming an asymmetric feathered water system.
Jialing River: A tributary of the upper reaches of the Yangtze River, named after it flows through the Jialing River Valley in the northeast of Fengxian County, Shaanxi Province. Daiwang Mountain in Fengxian County, Shaanxi Province, originated in the northern foot of Qinling Mountains. The main stream flows through Shaanxi, Gansu, Sichuan and Chongqing, and joins the Yangtze River at Chaotianmen in Chongqing. Above Zhaohua District, Guangyuan City, Sichuan Province, the upper reaches, the middle reaches from Zhao Hua to Hechuan District, Chongqing, and the lower reaches from Hechuan to Chongqing estuary.