The starting point and ending point of Weihe River

The starting point of Weihe River is Bird and Rat Mountain in Weiyuan County, Dingxi City, Gansu Province, and the end point is Tongguan County, Weinan City, which joins the Yellow River.

Weihe River, formerly known as Weishui, is the largest tributary of the Yellow River. Originated in Bird and Rat Mountain in Weiyuan County, Dingxi City, Gansu Province, it spans eastern Gansu and central Shaanxi, mainly flows through Tianshui in Gansu Province, Baoji, xianyang, Xi and Weinan in Guanzhong Plain of Shaanxi Province, and joins the Yellow River in Tongguan County, Weinan City. The total length of the main stream is 8 18km, and the total drainage area is 134766km2.

Weihe river basin is connected to east-west Qinling mountains in the south and Liupanshan barrier in the north. Weihe river basin can be divided into loess hilly and gully region in the west and Guanzhong plain region in the east. Weihe river basin has a long history of water conservancy. There are Longshou Canal and Zhengbai Canal in Shaanxi, and the larger ancient water conservancy projects include Guo Cheng Canal and Caoqu Canal.

History of Weihe waterway

Chang 'an, the capital of Han and Tang Dynasties, needs to transport hundreds of thousands or even hundreds of stones of grain to Chang 'an through Weihe River every year. The grain carrier on the Weihe River can carry six or seven hundred stones, and the military ships in the war years are constantly coming and going. For example, in the Battle of Qin after Emperor Wu of Song's felling, Wang Zhene led the water army, went up the Wei River in a small Meng Chong boat, landed at the Wei River Bridge, and conquered Chang 'an in one fell swoop.

At the end of Tang Dynasty, the capital was moved to Luoyang, and the Weihe River declined by water transport. After the middle of the Qing Dynasty, the Weihe River was basically navigable. Only when there is a lot of water in summer and autumn do small wooden boats pass through some downstream sections, which shows that the water volume of Weihe River changes greatly.