The main rivers in Nanjing are the Yangtze River and the Qinhuai River. The Nanjing section of the Yangtze River starts from the south of Tongjing Town, Jiangning, and ends at the east of Yingfang Township, Jiangning, with a length of about 95 kilometers within the city. The Qinhuai River is 103 kilometers long. It is divided into two branches outside Wudingmen in Nanjing. One is the main stream, called the Outer Qinhuai River, which flows around the city through Zhonghuamen, Shuiximen, and Dinghuaimen and flows into the Yangtze River from Sanchahe. The other branch is called the Inner Qinhuai River, which enters the city from the East Water Gate of Tongjimen and is divided into two branches at Huaiqing Bridge. The southern branch is the "Ten Li Qinhuai", which passes through Confucius Temple Wende Bridge to the West Water Gate of Shuiximen and exits the city, merging with the main stream. The northern branch is the ancient Yundu, which passes through Neiqiao to the culvert of Zhanggong Bridge and enters the main stream. There is the Chuhe River in the north of Nanjing. The main stream is 110 kilometers long, with a winding river channel and a catchment area of ​​7,900 square kilometers. There are Chunli Canal and Tianshengqiao River in the south.