Introduction to the Songmao Ancient Road: The Songmao Ancient Road was called "Randong Mountain Road" in ancient times. It starts from the west of Dujiangyan City and ends at Songpan, with a total length of 320 kilometers. It was an ancient transportation artery for material exchange between the Chengdu Plain and the northwest Sichuan Plateau. The Songmao Ancient Road has played a huge role in history. After 1950, with the construction of Cheng-A Highway, the ancient road gradually ended its historical mission. The existing section from the west of Dujiangyan city to Erwang Temple still reminds people of the long days when camel bells jingled and business travelers came. Along this road, you can visit Dujiangyan and Erwang Temple. The historical sites and magnificent scenery on both sides will add endless fun to tourists.