Introduction to Suojiang Ruins: The scenic spot is located on the solid rocks on the bank of Tongluo Gorge. It is said that the Suojiang Iron Chain was built in the late Ming Dynasty to prevent Zhang Xianzhong's troops from crossing the river. The iron chain has long since disappeared, but only the holes for fixing the iron chain are still there. The existing iron chain was installed in recent years for future generations to pay tribute to and reflect on the past. The tranquility.