Introduction to Tianping Qianzhai: At 3000 meters north of Yinxian Guan, there are independent peaks on both sides of Dashimen Valley, with an altitude of 450 meters. The tops of the two tops are as flat as a courtyard, with an area of ​​more than 50 square meters each. Both sides of the village have tops. It also looks like a sentry post entering a ditch. There are many pine trees around the two villages, showing the mysterious nature and danger.