1. According to the weather network query, it is known that the elevation of Jiayuguan is between1412-2,722 meters, the oasis is between 1450- 1700 meters, and the average elevation of the urban area is 1600 meters.

2. Jiayuguan, known as "the first male pass in the world", is located in the middle of the narrowest valley 5 kilometers west of Jiayuguan City, Gansu Province. The city walls on both sides pass through the desert Gobi, connecting the Great Wall of Montenegro in the north and the first pier in the world in the south, which is the westernmost pass of the Great Wall of Ming Dynasty.