Introduction to Yangguan Beacon: Yangguan Beacon is built on Dundun Mountain, the highest point in Yangguan area. The beacon is built by stacking several layers of soil and one layer of reeds. It is now about 4.7 meters high and the base is long and wide. 8-7.5 meters, the top length and width are 8-6.8 meters. Climbing the top of the beacon, you can have a panoramic view of the square garden for dozens of miles, so it is called "Yangguan Ears and Eyes".