In the green stone forest, many huge ground depressions can be seen. This is because Gesala is located in the Panxi Rift Valley. The billions of years and the geological role of the strong cracks have created the karst karst geological landscape of Gesalaqit. There are more than 600 such tiankeng floor drains in the entire Gesala area, as well as underground underground rivers with a huge flow and 40 million cubic meters of underground cavern reservoirs, which are rare in the world, making the Panxi Rift Valley more quaint. The vicissitudes of life are quite spectacular. Walking around the tiankeng floor drain, these tens of thousands of years of crater, do not know how many secrets are hidden under the ground, whether there is also an unknown underground world.