Introduction to the Daigu landform: The Daigu landform is the fifth largest landform in China recognized and named by the Chinese Academy of Sciences after the "Danxia landform", "Zhangjiajie landform", "Zhangshi rock landform" and "karst landform" The rock-shaped landform is named because this landform is most concentrated and typical in Daigu Town, our county. The core area of ​​the Daigu landform is located in Daigu Town in the northeast of Mengyin County, Shandong Province. There are many towering valleys here and is known as the "China's Gu Township".