788.4 kilometers. According to Baidu map, Datong is a key city in the central region and a sub-central city in the province. It is located in North China, the center of Datong Basin in the north of Shanxi, the junction of Shanxi, Hebei and Mongolia, and the northeast of the Loess Plateau. It is the barrier of Shanxi, the gateway to the north and the throat of Shanxi, Hebei and Mongolia. It borders the Great Wall in the north and Wulanchabu in Inner Mongolia. It is a battleground for military strategists throughout the ages and is known as the "northern lock key". Zhengzhou city is located. The general trend of Zhengzhou's topography is high in the southwest and low in the northeast, which belongs to temperate continental monsoon climate. There are large and small rivers 124 in Zhengzhou, which span the Yellow River and Huaihe River basins. The distance between the two places is 788.4 kilometers, which can be reached in 9 hours and 25 minutes by car.