Introduction to Dunhuang Yadan: Dunhuang Yadan is part of ancient Lop Nur. It is a desert plain area, located about 180 kilometers northwest of Dunhuang City, with a park area of ​​398 square kilometers. Due to the horizontal formation of rock formations and the development of vertical joints, the soft rock formations have been weathered by nature's violent winds and rains for a long time, resulting in the formation of various Yadan wind erosion landforms.