Yin Mountain
The Yinshan Mountain Range is a section of the mountain range located in the central part of the Inner Mongolia Autonomous Region, which roughly includes the Serten Mountain, Daqing Mountain, Wula Mountain, Wolf Mountain and other mountain ranges.
Yin Mountain is not high, the highest peak at the east and west ends is more than 2,000 meters above sea level, with an average altitude of 1500-2000 meters, but Yin Mountain is very long, about 1200 kilometers. The width from north to south is between 50 and 100 km.
Ele Song
Folk Songs of the Northern and Southern Dynasties
Eilechuan, under the Yin Mountain.
The sky is like a dome, covering the four wildernesses.
天苍苍,野茫茫,
The wind blows the grass and sees the cattle and sheep low.
The Yinshan Mountains became the dividing line between the civilization of the Central Plains regime and the nomadic regime, so the "Hetao Plain" composed of Yinshan and the Yellow River in Shaanxi and Ningxia has become the focus of both want to grab, once the southern foot of Yinshan Mountain and the Hetao Plain are all occupied by nomads, then they can easily attack the city of Chang'an. Different from the "bitter cold land" north of Yinshan, it is undoubtedly a real "plugged in the south of the Yangtze River" for almost all tribal regimes under the nomadic civilization, and the famous folk song "Eilechuan" of the Northern Dynasty gives the most realistic portrayal.
Without the Yinshan Mountains, the Yellow River might have crossed the Yinshan Mountains and flowed from the Urad Houqi to Mongolia along the Ganqimao Road (Ganqimaodu), "flooding" the Mongolian Plateau – this is the real contribution of the Yinshan Mountains, without which we might not have a mother river.
Yinshan is not so much a mountain range as a natural Great Wall in the north of the motherland, as a geographical demarcation, witnessing the collision and intersection of farming peoples and nomads.
During the Warring States Period, Li Mu, one of the four famous generals, beheaded more than 100,000 Huns, after which the Huns did not dare to cross the line of Yinshan, and the Huns heard Li Mu's name, and did not dare to cry at night.
At the end of the Warring States Period, Tou Manshan Yu led his army across the Great Wall of Yinshan Mountain, galloping vertically and horizontally, as if entering a no-man's land, almost no Zhao army stopped him. The Xiongnu occupied the fertile pastures of the Yellow River, which was the Hetao area.
In 216 BC, five years after Qin Shi Huang destroyed the Six Kingdoms, Meng Tian led his troops to cross the Yellow River north and gain all the territory south of Yinshan. The Xiongnu's sphere of influence retreated to the north of the Great Wall of Yinshan, and under the pressure of Donghu and Yueshi, it once shrank to the north of the desert.
The first emperor ordered Fusu, Meng Tian, and Wang Li to build the Great Wall built by Yan, Zhao, and Qin, and connected them end to end. From Lintao in the west, to Liaodong in the east, it is called the Great Wall.
At the end of the Qin Dynasty and the beginning of the Han Dynasty, the Xiongnu had a Mao Dun Shan Yu. In the siege of Baideng, the Xiongnu besieged Liu Bang, the ancestor of the Han Dynasty, in Baishan Mountain (now north of Datong, Shanxi), and since then the Xiongnu have taken the Hetao area south of Yinshan.
In 198 B.C., Gaozu Liu Bang married the lord of Weng (the daughter of the princes and kings) to Mao Dunshan Yu, which was the first time between Han and Hungary and opened the curtain of harmony.
After Emperor Wu of the Han Dynasty Liu Che took charge of the world, he saw that the national strength was abundant, and decided to use troops against the Huns. Emperor Wu of the Han Dynasty repeatedly sent Wei Qing, Li Guang and Huo Qubing as generals to lead the Han army to besiege the Xiongnu tribes entrenched in the Hetao region and drive them to the Mobei region.
In the later period, the land competition for the Hetao of various dynasties and generations was continuous.
Thirteen passes of the Great Wall
The first pass: Shanhaiguan ~ Hebei Qindao Northeast --- "The first pass in the world"
The second level: Huangya Pass ~ Jixian County, Hebei
The third level: Juyong Pass ~ Changping District, Beijing
Juyongguan was founded in the early Ming Dynasty under the planning of the general Xu Da and the deputy general Chang Yuchun. Jiayuguan was built in the fifth year of Hongwu in the Ming Dynasty, that is, in 1372, 9 years earlier than Shanhaiguan. Juyongguan is the oldest, followed by Jiayuguan, and Shanhaiguan is late.
The fourth level: Bauhinia Pass ~ Yi County, Baoding, Hebei
The fifth level: Reverse Horse Pass ~ Tang County, Hebei
Sixth level: Pingxingguan ~ Lingqiu County, Datong, Shanxi
The seventh level: Bitou Pass ~ Shanxi Biguan County
The eighth pass: Yanmen Pass ~ Shanxi Xinzhou Dai County --- "China's first pass"
In 1023 B.C., King Mu of Zhou came here to patrol the border, during the Spring and Autumn Period and the Warring States Period, King Wuling of Zhao set up Yanmen County, and the Tang Dynasty placed the pass, which was called Yanmen Pass.
The ninth level: Niangzi Pass ~ Northeast of Pingding County, Shanxi
The tenth level: Kill the tiger's mouth pass ~ the junction of Shanxi and Inner Mongolia
Eleventh Pass: Jiayuguan ~ Jiayuguan City, Gansu --- "The World's First Xiongguan"
The twelfth pass: Yangguan ~ southwest of Dunhuang City, Gansu Province
The thirteenth pass: Yumen Pass ~ northwest of Dunhuang City, Gansu Province
Hexi Corridor
Sideside's poem
Out of the plug two songs, one of them
Don Wang Changling
In the Qin period, the bright moon and the Han period, the Long March has not been returned.
But to make the dragon city fly will not teach Humadu Yin Mountain.
Send Yuan Er envoy Anxi
Don Wangwei
Weicheng is light and dusty towards the rain, and the guest house is green and willow-colored.
Persuade you to have a glass of wine, and there is no reason to go out of Yangguan in the west.
"Liangzhou Ci"
Don Wang's Spirit
The Yellow River is far above the white clouds, a lonely city and ten thousand mountains.
Why should Qiang Di complain about the willows, the spring breeze does not pass the jade gate.
Seven Songs from the Army: Part 4
Don Wang Changling
Qinghai Changyun dark snow mountain, lonely city looking at Yumen Pass.
The yellow sand wears gold armor in a hundred battles, and Loulan will not be returned if it is not broken.