Introduction to the Spring and Autumn Stone Chamber: The Spring and Autumn Stone Chamber is located on the top of the northwest end of Yushan Mountain. There are more than 200 stone chamber mounds, all built along the direction of the mountain range. They are of different sizes and are made of long strips of stone stacked and capped with large stones. , piled with mountain mud. After textual research, it was found that it was a cultural site of the Spring and Autumn Period. As for its purpose, it may be said to be Tibetan army, sacrifice, house, or tomb. There are different opinions, which adds to the mystery.