Introduction to Nantianmen: It is the road that passes by the Queen Mother Palace, Guanyin Well, and Laojun Hall. Tianmen is surrounded by mountains and mountains. To the north, it is the Queen Mother Palace on the top of Sanwei Mountain; to the east, it passes through Guanyin Well and Laojun Hall. Tangtang, passing through Sanwei Mountain to Subei Mongolian Autonomous County; to the south, to Daquan; to the west, Mingsha Mountain and Mogao Grottoes.