Moon Gorge of Santan

　　   The Moon Gorge in the Santan Scenic Area was historically known as the throat of Bashu and a strategic pass of Qinlong. During the Three Kingdoms period, Zhuge Liang passed through here three times during his six campaigns against Qishan, and remnants of the ancient plank roads, about 4 kilometers in length, still exist in the gorge. In the Tang Dynasty, it became an official and commercial route; both Emperor Xuanzong and Emperor Xizong of Tang took this path when entering Shu.