Wei River

The Wei River (渭河; Wèi Hé), also known as the Wei Shui, is a major river in China, located in the north-central part of the country. It is the largest tributary of the Yellow River, joining the Yellow River at Tongguan in Weinan. The Wei River originates in Weiyuan County, Gansu Province, and flows eastward through Shaanxi Province, passing through the Guanzhong Plain, a historically significant and agriculturally rich area. The river's total length is approximately 818 kilometers (508 miles).

The Wei River valley is considered one of the cradles of Chinese civilization. The river has played a crucial role in the development of agriculture, transportation, and settlement in the region for thousands of years. Several ancient capitals of China, including Xi'an (formerly Chang'an), are located along its banks, reflecting its historical importance.

The Wei River is essential for irrigation and water supply in the Guanzhong Plain, supporting extensive agriculture, including wheat and cotton cultivation. However, like many rivers in China, the Wei River faces challenges related to pollution and water scarcity due to industrialization, urbanization, and climate change. Efforts are being made to address these issues and improve the river's ecological health.