Introduction to Guolao Ridge: It is said that Zhang Guolao often rode his donkey backwards to and from the rugged path of Buyun Road. One rainy day, the great immortal came back from his travels. When he arrived here, the donkey's hooves got stuck in the mud, and Guolao was in a hurry. When he was about to fall, he hurriedly held it up with his hands, leaving behind numerous hoof prints and human palm prints, which were called "Guolao Immortal Traces", and this ridge was also named "Guolao Ridge".