Shen Yongji, a poet in the Qing Dynasty, wrote in his poem "Climbing Badaling": "Ride out of the house and return to Bifeng. Sit and peek at the capital and walk around the wall. The setting sun is heavy, and the cold sound is broken. Looking back at the mausoleum, the cloud will always be Jackie Chan. " "Immediately look at Qilian, Qifeng high. When you meet Jiayu in the west, there is no Qingyun. "(Chen Mingyi, Qilian Mountain)