Introduction to the ancient official road: The official road of "Three Provinces of Cockcrow" is a mountain road made of mushroom stones. As you climb up, the Jianhe River on the left jumps and sings down. Climbing to the top of the mountain, you can have a panoramic view of the Jiangsu, Zhejiang and Anhui border areas. According to legend, this official road was an important route for the government to transport mail. Emperor Hui of the Ming Dynasty, Zhu Yunwen, once fled to Liyang through a secret passage in the palace in Kyoto (now Nanjing). He then climbed over the mountains on this official road and fled to Yunnan.