Stone wall introduction: Silaofeng is a huge wall, standing against the sky, like a high wall. The surface of the stone wall is flat and smooth, with no vegetation growing on it. It is a yellow-brown rock mass with an inclination direction consistent with the hillside. It is about 2 meters wide, the upper floor is 20 meters high, and the lower floor is 30 meters high. The upper and lower floors combined are almost as high as a nine-story building.