The geographical location of Datong coalfield is about ゜ east longitude 1 13, ゜ north latitude 40 4'. It spans Datong, Youyu, Pinglu, Zuoyun, Shuozhou and other cities and counties. It is roughly rectangular, 85 kilometers long and 30 kilometers wide, with a total area of 65,438. Among them, Datong City has a coal-bearing area of 632 square kilometers and accumulated proven reserves of 37.6 billion tons.

There are two coal measures in Datong coalfield: Jurassic coal measures and Carboniferous-Permian coal measures. The Jurassic coal measures were originally formed in the depression basin in the late Indosinian movement, and then were involved in the polygonal structure in the Neocathaysian period under the influence of Yanshan and Himalayan movements, and were single weakly bonded coal. Jurassic coal measures and Carboniferous-Permian coal measures * * * minable seam 18, including Jurassic coal measures 15 and Carboniferous-Permian coal measures 3, with a total thickness of 26 meters, which is equivalent to the height of a 7-story building.

Datong coalfield not only has large reserves, but also has good coal quality. The Jurassic coal series being mined is the best power coal, which is called "world power pulverized coal and rice". It has five characteristics: First, it has strong firepower. The average calorific value per kilogram of coal is only 5000~6000 kcal, and only 9~ 10 kg of water can be boiled; Datong Jurassic coal has a calorific value of about 8000 kcal per kilogram, which can boil 1 1~ 12 kg of water. Secondly, the ash content is low. The ash content of coal is generally 10% ~ 20%, that is, every 100 kg of coal is burned, leaving 10 ~ 20 kg of ash. The Jurassic coal ash content in Datong is only 5~8%, that is, only 5~8 kg of ash is burned per 100 kg. Third, there are few impurities such as sulfur and phosphorus. The sulfur content of Jurassic coal in Datong is less than 1%, and the phosphorus content is only 0.29%. Fourth, the volatile matter is high. The volatile content of Jurassic coal in Datong is between 30% and 34%. As a fuel, it is easy to ignite, suitable for making gas and a good raw material for processing and transforming into coal chemical products. The fifth is high hardness. Hard coal mining takes some effort, but it is very convenient in transportation, especially long-distance transportation. Datong's high-quality coal has long been famous. In the past, coal merchants in Beijing and Tianjin used "Kouquanchun Block" as a trademark to attract customers. Datong coal is now an indispensable industrial raw material for national construction.

In addition, Datong coalfield also has superior mining conditions. First of all, its coal seam is very close to the surface. Generally, coal can be seen as long as the shaft is cut 60~ 100 meters, and the deepest part is no more than 400 meters. Therefore, the well construction speed is fast and the investment is low. Second, the dip angle of coal seam is small, generally about 5%, which is convenient for mechanized mining. Third, the roof is hard, and the roof rocks are mostly hard colloidal rocks. Roof rocks in some places have been mined for decades, but they still can't fall off. Fourth, the volume is small. Fifth, there is little groundwater. Generally, the mine water inflow is about 6~7 tons per minute, or even more, and Datong Coal Mine is less than 1 ton, which can save drainage equipment.