This is the place where the soldiers of the Spring and Autumn Period and the Warring States Period had to contend. The ancient Great Wall of Qi State passed through the mountains. Here is the "Meng Jiangnu Crying Great Wall" in folklore. Qi State is the feudal city of Jiang Ziya and the "Township of Confucius and Mencius". From the surname of Meng Jiangnu, it is possible that there is "Crying Great Wall".