Introduction to Xianrenju Stone Cave: The entrance of the cave is similar to an isosceles triangle, with a base length of 1.5 meters, a height of 2 meters, a depth of more than 7 meters, and a widest point of 3 meters. The width is very irregular. Judging from the stone axes and stone balls found in the cave, it is inferred that this may have been a sheltered residence for the ancestors of the Neolithic Age.