The Datong Basin (Chinese: 大同盆地) is located between the northern Shanxi Province and the inner/outer Great Walls, China. It occupies the western part of the Sanggan Basin, which has been created by the erosion of the Loess Plateau by the Sanggan River and its tributary, Yuhe.
The basin is at about 1,100 meters above sea level. It has thriving agriculture and animal husbandry, and is rich in mineral resources, such as coal.
Datong is a prefecture-level city in northern Shanxi Province in the People's Republic of China. It is located in the Datong Basin at an elevation of 1,040 metres (3,410 ft) and borders Inner Mongolia to the north and west and Hebei to the east. As of the 2020 census, it had a population of 3,105,591 of whom 1,790,452 lived in the built-up (or metro) area made of the 2 out 4 urban districts of Pingcheng and Yungang as Yunzhou and Xinrong are not conurbated yet.