Introduction to Jinfo Cave: Jinfo Cave is the best among dozens of caves in Jinfo Mountain. Its magic lies not in its beautiful stalactites, but in its high altitude, long geological formation age, and large scale. , the well-preserved cave salt-mining ruins, which are rare in the world, add a sense of mystery to it. The length of the cave that has been proven so far is 11 kilometers, and the cave bottom area is 140,000 square meters. However, it is still unknown how deep and how far the cave bottom is.