Tiankeng

　　The Pingtang Tiankeng Group is located in the southeast of Tangbian Town, Pingtang County, Guizhou Province. It is the core area of ​​the "Great Guizhou Beach". From 1988 to 1992, Chinese and American geological experts confirmed the "Great Guizhou Beach after more than three years of joint investigation "It is an ancient environmental deposit more than 200 million years ago. It is a sloping platform that is exposed to the ground from the bottom to the top. It is a plot of about 10 square kilometers composed of underground lakes and karst landforms on the surface. According to experts' research, the "Greater Guizhou Beach" was a vast ocean hundreds of millions of years ago. Later, due to crustal movement, the seawater subsided and the mountains on the seabed were exposed. Internationally renowned sedimentary geologist Paul Ino believes that this is unique in today's world and has very important scientific research value. It is a rare geological research base in the world. Pingtang Tiankeng Group has 21 pits such as Dadaihe Tiankeng, Anjiadong Tiankeng, Maodituo Tiankeng, Daotuo Tiankeng, Yaorenwan Tiankeng, Yinhe Tiankeng, and Dalaituo Tiankeng. The area of ​​the pit group is about 20 square kilometers, with a maximum altitude of 1137 meters and a minimum altitude of more than 540 meters. Its depth ranges from 300 meters to more than 600 meters. About 800,000 square meters.

        

　　The cliffs and cliffs around the tiankeng are dense, the virgin forest is dense, the bottom is rich in vegetation, and there are many rare animals and plants. It has important scientific investigation and tourism value. In the world's geological and natural landscapes, it has the characteristics of scarcity, peculiarity, steepness, magnificence, and beauty. Because of its peculiar karst landform, it records the entire process of ocean to land change. Another characteristic karst landscape outside. Pingtang Tiankeng Group is known for its large scale, complete development of Tiankeng landforms, and deep depressions. It is called “Tiankeng Museum” and “World Karst Holy Land” by geological experts. It is a wonder of the world.