Huangya Shuiguan is known as the only water pass of the Great Wall. It controls the valley. It connects Taiping Village in the East and Huangyaguan City in the west. Yongle in Ming Dynasty (1403-1424) was built and restored on the original site in 1992. A five-hole water tunnel was built on the upper part of the road. It is 75.5 meters long and 12.5 meters high. By the side of Jinwei Highway Gap Bridge, to Tongguan City northeast corner building. Ming Dynasty Shuiguan, pheasant battlements with iron guns and copper, five-hole water tunnel barrier gates, war against enemy soldiers, peacetime customs collection.