Huangyaguan Great Wall Scenic Area is located on Dongshan Mountain, 30 kilometers from the northernmost end of Ji County. It was first built in the Northern Qi Dynasty and rebuilt in the Ming Dynasty, including Huangyaguan and Taipingzhai. When Qi Jiguang, a famous general in the Ming Dynasty, was appointed as the general of Jizhen, he redesigned and renovated it with bricks. The architectural features of this section of the Great Wall are: the walls are made of bricks and stones, the enemy towers are square and round, and the bricks are hollow and solid. There are all kinds of pass forts, enemy towers and water gates. It connects mountains and crosses rivers, with a clever layout, combining the majestic, dangerous and beautiful. Huangyaguan Great Wall is the main pass and passage between Ji County and Xinglong County, Hebei Province, and it is also the only pass in Ji County. The cliffs on the east and west sides of the pass are like cuts, and the mountains are steep and majestic. There is a momentum of "one man guarding the pass, ten thousand men cannot open it", which has always been a battleground for military strategists. Because the cliffs reflect thousands of golden lights when the setting sun shines in the west, it is named Huangyaguan. The pass consists of the main pass, water pass, east and west slight city and beacon tower. The Water Pass is a five-hole bridge-style building, which was built during the Yongle period of the Ming Dynasty. The total length of the Water Pass is 75.5 meters and the total height is 12.15 meters. It controls the valley of the Beihe River, connecting Taiping Village in the east and Huangyaguan City in the west. There are battlements and shooting holes on the top and iron fences on the bottom, so that water can flow but people and horses cannot cross. In wartime, it fights against enemy soldiers, and in peacetime, it collects taxes at the pass. Now only the remains of the northern city wall are left, also known as Bagua City, named after the "Bagua Street" in the city. Bagua City is the location of the Great Wall government office and warehouse. It faces the Beihe River in the east and Maoding Mountain in the west. It was built according to the terrain of the mountain and is in an irregular knife-handle shape. From east to west, it consists of three parts: the urn city, the outer city and the inner city. There are thoroughfare gates and towers on the east, west and south sides of the city wall. There is no gate on the northern city wall due to defense needs, and the Beiji Pavilion, commonly known as the Guandi Temple, was built on the city platform. Taiping Village is located in Xiaopingan Village, 1 km southeast of Huangyaguan, with an altitude of 700 meters. It starts from Banlagang Mountain in the east, ends at Widow's Tower in the west, connects to Fenghuang Tower in the northwest, and connects to Shuiguan in the southwest. It is 873 meters long. It controls the fortress in the valley of Chongshan on the east side of Huangyaguan City, and is famous for its steep mountains and majestic Great Wall. Shuiguan is a five-hole bridge-style building, which was built during the Yongle period of the Ming Dynasty. Shuiguan is 75.5 meters long and 12.15 meters high. It controls the valley of the Beihe River, connected to Taiping Village in the east and Huangyaguan City in the west. There are battlements and shooting holes on the top, and iron fences on the bottom, so that water can flow but people and horses cannot cross. In wartime, they fought against enemy soldiers, and in peacetime, they stationed at the pass to collect taxes. Now only the remains of the northern city wall remain, also known as Bagua City, named after the "Bagua Street" in the city. Bagua City is the location of the government office and warehouse of the Great Wall. It faces the Beihe River in the east and the Maoding Mountain in the west. It was built in accordance with the terrain of the mountain and is in an irregular knife-handle shape. From east to west, it consists of three parts: the urn city, the outer city and the inner city. There are gates and towers on the east, west and south sides of the city wall. There is no gate on the north wall due to defense needs, and the Beiji Pavilion, commonly known as the Guandi Temple, was built on the city platform. Taiping Village is located in Xiaopingan Village, 1 km southeast of Huangyaguan, with an altitude of 700 meters. It starts from Banlagang Mountain in the east, ends at the Widow Tower in the west, connects to the Phoenix Tower in the northwest, and connects to the Water Gate in the southwest. It is 873 meters long. It controls the fortress in the mountains and valleys on the east side of Huangyaguan City. It is famous for its steep mountains and majestic Great Wall.