Motorcycle introduction: The fortress is divided into upper and lower parts, with a total area of 10,000 square meters for various fortifications. The underground fortifications are 20 meters deep and run east-west. They are composed of a main road and multiple branch roads. They are all made of reinforced concrete. There are 11 entrances in total. Each entrance is connected to the ground troop assembly area, artillery position, Observation stations are connected. The above-ground part is in the form of an exhibition hall, showing many pictures, statues and objects to visitors. This is a patriotic education base.