The world is nine plugs, Yanmen is headed. Yanmenguan is located in the Yanmen Mountain, 20 kilometers north of Daixian County, Shanxi Province. It is surrounded by thousands of miles and dangerous peaks. The terrain is very dangerous. Yanmenguan is located in the main road of the throat. Fu Mokai, has the title of "three Jin throat" and "Central Plains lock key". Throughout the ages, there have been too many stories and legends, smoke and war. Listening to the side ears, the wind whimpered, as if in the low voice, those past years. Suddenly heard the sound of the drums, a team of warriors wearing armor, imposing sergeant against the sun, through the city gate to welcome us. More than a thousand years ago, the well-known legendary family Yang Jia will have a deep relationship with Yanmenguan. Yang Ye has been here for eight years to fight against Khitan. Autumn season, Yanmenguan is the best place to go on foot. There is a national hiking trail, which is in the Yanmenguan Scenic Area, through Tianyinmen, Dilimen, Yangjiacheng Sculpture Group, Mingyue Lake and Yanmenguan Great Wall and other places, the Yanmenguan scenic spots, spectacular mountains and a net. In the shops along the road, the local specialty snacks and snacks are dazzling, and the aroma is floating in the sun. "The three sides must be unparalleled, the nine stoppers respect the first level", the first reading of Yanmen, is in the "Lv Spring and Autumn". The earliest history of Yanmenguan can be traced back to the Western Zhou Dynasty, when Yanmenguan was still a natural barrier. In the Warring States Period, it was already a famous military fortress in the world. The book "Lv's Spring and Autumn Tangible" at the end of the Warring States Period: "The world is nine plugs, hooking one of them", Jiusai refers to "Hebei's Jingwei, Lingyu, Juyong, Henan's Daxie" , Vedic, Jing, Fangcheng, Confucius and Shanxi. The hook is today's Yanmen.