What are the four rivers in Yunyang County?

A river: the Yangtze River. Four rivers: Pengxi River, Tangxi River, Changtan River and Modaoxi River. Yunyang is traversed by the Yangtze River, with two tributaries in the north and two streams in the south. There are large streams 13 in the county, mainly the Yangtze River, Pengxi River, Changtan River, Tangxi River and Modaoxi River, with a total length of 435.3 kilometers. The flow of the Yangtze River in the county is 686,5438+0 km, and the total drainage area is 65,438+0,340 square km. On the flat land, there are Luyang Dam, Levin Dam, Yutang Dam, Dongxia Dam, Gumuba and other valley low dams and peace mountain dams, accounting for 0.66% of the county's area. The hills are mainly distributed in the valley areas parallel to the valley areas such as Modaoxi, Jitangxi and Pengxi, accounting for 0.45% of the county area. The total annual runoff is 2.3765438 billion cubic meters.