Bei Tang is located in the northwest of the county 1.5km, 300m north of the west end of Xianggongzhuang Village. The monument was built by Zhang Zhongwu, the grandson of Zhang Renxian in the Tang Dynasty, and it has been nearly 1500 years. Whenever the morning fog is misty and the monument is abrupt, people imagine that Zhang Gong is in command of thousands of troops and flags flying, and its majestic momentum is called "Tang Monument spits fog".