Haizishan Nature Reserve is located in the north of Daocheng, with a total area of 3,287 square kilometers, with an average altitude of 4300-4700 meters. The plateau is the largest ancient ice relics of the Qinghai-Tibet Plateau, known as the "Daocheng Ancient Ice Cap". Monster stones and large and small Haizi are scattered. On the mountains with an average altitude of 4,500 meters, 1145 large and small Haizi flashed in the mountains like a thousand diamonds scattered by God. The largest density is China. Haizi Mountain's unique landscape is the stone river, stone sea and different forms of ice-corrosion basin (haizi) composed of granite drift (gravel). There were no trees or rivers, and even weeds were only occasionally overgrown. "Brutal" was like the surface of Mars taken by the Courage.