No.2 Mountain in Ejina Banner, Alxa League, Inner Mongolia Autonomous Region

These artificial mountains were mainly built in the late 196s and early 197s to defend against the attack of Soviet armored clusters. They are usually built near the open traffic arteries and widely distributed in Inner Mongolia, Northeast China and North China. Its use mode is to provide visibility for hidden ground artillery groups. Generally, the mountain is 3 ~ 4 meters high and can control the area with a radius of more than 4 kilometers.