Ordos Loop
Encyclopedia
The Ordos Loop is a region of China west of Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...

. The Yellow River
Yellow River
The Yellow River or Huang He, formerly known as the Hwang Ho, is the second-longest river in China and the sixth-longest in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into...

 flows north-northeast, then east, and then south forming three sides of an imperfect rectangle. The south side is formed by the Wei River
Wei River
The Wei River is a major river in west-central China's Gansu and Shaanxi provinces. It is the largest tributary of the Yellow River and very important in the early development of Chinese civilization....

 which rises not far from the southwest corner and flows east to the southeast corner. Clockwise from the southwest corner the sides of the 'rectangle' are about 400, 200, 375, and 350 miles. At the southeast corner the Yellow River turns east and finds its way through the mountains at the Hangu Pass
Hangu Pass
Hangu Pass was a strategic pass in ancient China just south of the great eastern bend of the Yellow River in today's Lingbao, Henan Province...

 onto the North China Plain
North China Plain
The North China Plain is based on the deposits of the Yellow River and is the largest alluvial plain of eastern Asia. The plain is bordered on the north by the Yanshan Mountains and on the west by the Taihang Mountains edge of the Shanxi plateau. To the south, it merges into the Yangtze Plain...

.
Rainfall and therefore population decreases rapidly as one moves north. The Wei River valley on the south is densely populated and is one of the ancient centers of Chinese civilization. The north is grassland and desert (Ordos desert
Ordos Desert
The Ordos Desert is a desert and steppe region lying on a plateau in the south of the Inner Mongolian Autonomous Region of the People's Republic of China . The soil of the Ordos is a mixture of clay and sand and, as a result, is poorly suited for agriculture. It extends over an area of...

) and is part of Inner Mongolia
Inner Mongolia
Inner Mongolia is an autonomous region of the People's Republic of China, located in the northern region of the country. Inner Mongolia shares an international border with the countries of Mongolia and the Russian Federation...

. The Great Wall of China
Great Wall of China
The Great Wall of China is a series of stone and earthen fortifications in northern China, built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic groups...

 cuts across the center roughly separating the nomadic north from the agricultural south. The Ordos region proper is the area north of the wall. Although this rectangular area is obvious on a map, the north and south are so different that the region cannot be said to have a common history.

To the south of the Wei valley are the high Qin Mountains which separate it from the valley of the Han River, a tributary of the Yangtze River
Yangtze River
The Yangtze, Yangzi or Cháng Jiāng is the longest river in Asia, and the third-longest in the world. It flows for from the glaciers on the Tibetan Plateau in Qinghai eastward across southwest, central and eastern China before emptying into the East China Sea at Shanghai. It is also one of the...

. Further south and somewhat west is the Sichuan basin
Sichuan basin
The Sichuan Basin is a lowland region in southwestern China. Despite its historical name, it is not only synonymous to Sichuan province, comprising its central and eastern portions as well as part of Chongqing Municipality...

. To the east are the Lüliang Mountains
Lüliang Mountains
The Lüliang Mountains is a mountain range along the western border of Shanxi, China. To the west is Shaanxi with the south-flowing part of the Yellow River and the Ordos Region. To the east is the central valley of Shanxi with the south-flowing Fen River and then the Taihang Mountains and the...

 which form the west side of the Shanxi
Shanxi
' is a province in Northern China. Its one-character abbreviation is "晋" , after the state of Jin that existed here during the Spring and Autumn Period....

 Plateau. To the north and northwest are the grasslands of Inner Mongolia
Inner Mongolia
Inner Mongolia is an autonomous region of the People's Republic of China, located in the northern region of the country. Inner Mongolia shares an international border with the countries of Mongolia and the Russian Federation...

. The southwest corner merges into the Tibetan Plateau
Tibetan Plateau
The Tibetan Plateau , also known as the Qinghai–Tibetan Plateau is a vast, elevated plateau in Central Asia covering most of the Tibet Autonomous Region and Qinghai, in addition to smaller portions of western Sichuan, southwestern Gansu, and northern Yunnan in Western China and Ladakh in...

.

An ancient tradition says that the Chinese people entered China by travelling down the Wei River. By about 1000 BC Chinese civilization was centered on the west side of the North China Plain with an extension up the Wei valley and a northern extension up the Fen River
Fen River
The Fen River drains the center of Shanxi Province, China. It rises in the Guancen Mountains of Ningwu County in northeast Shanxi, flows southeast into the basin of Taiyuan, and then south through the central valley of Shanxi before turning west to join the Yellow River west of Hejin. The Fen and...

. The lower Wei valley is still one of the most densely populated areas in China. Rulers based in the Wei valley had an advantage since the mountains to the east made a natural fortification
Guanzhong
Guanzhong , or Guanzhong Plain, is a historical region of China corresponding to the lower valley of the Wei River. It is called Guanzhong or 'within the passes' to distinguish it from 'Guandong' or 'east of the pass', that is, the North China Plain. The North China Plain is bordered on the west by...

 and war horses were readily available from the northern grasslands. The Zhou dynasty
Zhou Dynasty
The Zhou Dynasty was a Chinese dynasty that followed the Shang Dynasty and preceded the Qin Dynasty. Although the Zhou Dynasty lasted longer than any other dynasty in Chinese history, the actual political and military control of China by the Ji family lasted only until 771 BC, a period known as...

 and the Qin dynasty
Qin Dynasty
The Qin Dynasty was the first imperial dynasty of China, lasting from 221 to 207 BC. The Qin state derived its name from its heartland of Qin, in modern-day Shaanxi. The strength of the Qin state was greatly increased by the legalist reforms of Shang Yang in the 4th century BC, during the Warring...

 started in the Wei valley. Xi'an
Xi'an
Xi'an is the capital of the Shaanxi province, and a sub-provincial city in the People's Republic of China. One of the oldest cities in China, with more than 3,100 years of history, the city was known as Chang'an before the Ming Dynasty...

 on the lower Wei was several times the capital of China. By the Tang dynasty
Tang Dynasty
The Tang Dynasty was an imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire...

 the economic center of China had shifted to the Yangzi valley and the Wei region became partly dependent of food imported up the Grand Canal.

To the north of the Wei valley is the Loess Plateau
Loess Plateau
The Loess Plateau , also known as the Huangtu Plateau, is a plateau that covers an area of some 640,000 km² in the upper and middle reaches of China's Yellow River. Loess is the name for the silty sediment that has been deposited by wind storms on the plateau over the ages...

 with its many gullies and cave houses. It is loess from this region that makes the Yellow River yellow. Because of its low and variable rainfall the region was once notorious for drought and famine. Underlying the loess plateau is one of the largest coal beds in China. North and west of the loess plateau the grassland and desert belongs historically and culturally to Mongolia.

Along the two rivers: At the southwest corner near where the Yellow River emerges from the Tibetan Plateau is Lanzhou
Lanzhou
Lanzhou is the capital and largest city of Gansu Province in Northwest China. A prefecture-level city, it is a key regional transportation hub, allowing areas further west to maintain railroad connections to the eastern half of the country....

, the westernmost large city in north China and the capital of Gansu
Gansu
' is a province located in the northwest of the People's Republic of China.It lies between the Tibetan and Huangtu plateaus, and borders Mongolia, Inner Mongolia, and Ningxia to the north, Xinjiang and Qinghai to the west, Sichuan to the south, and Shaanxi to the east...

. To the west of Lanzhou is Xining
Xining
Xining is the capital of Qinghai province, People's Republic of China, and the largest city on the Tibetan Plateau. It has 2,208,708 inhabitants at the 2010 census whom 1,198,304 live in the built up area made of 4 urban districts.-History:...

 from whence caravans (and now the railway
Qingzang railway
The Qinghai–Xizang railway, Qingzang railway, or Qinghai–Tibet railway , is a high-elevation railway that connects Xining, Qinghai Province, to Lhasa, Tibet Autonomous Region, in People's Republic of China....

) started for Lhasa
Lhasa
Lhasa is the administrative capital of the Tibet Autonomous Region in the People's Republic of China and the second most populous city on the Tibetan Plateau, after Xining. At an altitude of , Lhasa is one of the highest cities in the world...

. North of Xining the Gansu or Hexi corridor
Hexi Corridor
Hexi Corridor or Gansu Corridor refers to the historical route in Gansu province of China. As part of the Northern Silk Road running northwest from the bank of the Yellow River, it was the most important route from North China to the Tarim Basin and Central Asia for traders and the military. The...

 runs along the northern edge of the Tibetan Plateau
Tibetan Plateau
The Tibetan Plateau , also known as the Qinghai–Tibetan Plateau is a vast, elevated plateau in Central Asia covering most of the Tibet Autonomous Region and Qinghai, in addition to smaller portions of western Sichuan, southwestern Gansu, and northern Yunnan in Western China and Ladakh in...

. This and the Wei valley was the main silk road
Silk Road
The Silk Road or Silk Route refers to a historical network of interlinking trade routes across the Afro-Eurasian landmass that connected East, South, and Western Asia with the Mediterranean and European world, as well as parts of North and East Africa...

 route from China proper
China proper
China proper or Eighteen Provinces was a term used by Western writers on the Qing Dynasty to express a distinction between the core and frontier regions of China. There is no fixed extent for China proper, as many administrative, cultural, and linguistic shifts have occurred in Chinese history...

 to the Tarim basin
Tarim Basin
The Tarim Basin is a large endorheic basin occupying an area of about . It is located in the Xinjiang Uyghur Autonomous Region in China's far west. Its northern boundary is the Tian Shan mountain range and its southern is the Kunlun Mountains on the northern edge of the Tibetan Plateau. The...

 and westward. Downriver (north) from Lanzhou is a gorge through Gaolan County
Gaolan County
Gaolan County is an administrative district in Gansu, the People's Republic of China. It is one of 58 counties of Gansu. It is part of the Lanzhou prefecture, with the city of the same name being the prefecture seat...

 and Baiyin
Baiyin
Baiyin is a prefecture-level city in China's Gansu province.-Geography and climate:Baiyin is part loess plateau, part desert. Elevation ranges from 1275 to 3321 meters above sea-level. The climate is very arid with only 110-352 mm of annual precipitation. Annual evaporation is 2101 mm resulting in...

. The river emerges from the mountains and enters Ningxia
Ningxia
Ningxia, formerly transliterated as Ningsia, is an autonomous region of the People's Republic of China. Located in Northwest China, on the Loess Plateau, the Yellow River flows through this vast area of land. The Great Wall of China runs along its northeastern boundary...

 near Zhongwei. It runs east with the Tengger Desert in Inner Mongolia to the north and hills to the south. It turns north through dry country to past the Qingtongxia dam to the irrigated area around Wuzhong City. It continues north past Yinchuan, the capital of Ningxia. To the west are the Helan Mountains. The river leaves the northern tip of Ningxia south of Wuhai
Wuhai
Wuhai is a prefecture-level city and regional center in the Inner Mongolia Autonomous Region of the People's Republic of China. It is located on the Huang He between the Gobi and Ordos deserts...

, flows through desert and enters a large irrigated area at Dengkou
Dengkou County
Dengkou County , is a county with 120,000 inhabitants under the administration of Baynnur, Inner Mongolia. The total area of the county is 4,167 km² with the Bayangol....

. At the northwest corner the Lang Shan
Lang Shan
The Lang Shan ; ) is a mountain range at the northwest corner of the Ordos Loop in Inner Mongolia. It runs from southwest to northeast and forces the Yellow River to turn from north to east. To the northwest is desert and to the southeast, between it and the Yellow River, is an irrigated area. Its...

 mountains force the river to turn east near Linhe. Here there is an irrigated area between the mountains and river and desert to the southeast. Near the center of the northern stretch is the large town and irrigated area of Baotou
Baotou
Baotou is a mid-sized industrial city in the Inner Mongolia Autonomous Region of the People's Republic of China. Governed as a prefecture-level city, its urban areas are home to a population of approximately 1.78 million, with a total population of over 2.65 million accounting for counties under...

. The main road south
China National Highway 210
China National Highway 210 runs from Baotou, Inner Mongolia to Nanning, Guangxi Province. It is 3,097 kilometres in length and runs south from Baotou towards Shaanxi Province, Sichuan Province, Chongqing, Guizhou Province, and ends in Guangxi Province.- Route and distance:-References:*...

 runs from Baotou to Xian. About 70 miles northeast of the northeast bend is Hohot, the capital of Inner Mongolia. The river turns south, enters the loess plateau and forms a gorge at least 200 feet below the surrounding hills. There are no large towns in this region. There is a dam apparently called Wanjia and another further south and then the Hukou Waterfall
Hukou Waterfall
The Hukou Waterfall , the largest waterfall on the Yellow River, China, the “second largest” waterfall in China , is located at the intersection of Shanxi Province and Shaanxi Province, to the west of Fenxi City, and to the east of Yichuan...

 of the Yellow River, the second highest in China. The river leaves the gorge near Hancheng, receives the Fen River
Fen River
The Fen River drains the center of Shanxi Province, China. It rises in the Guancen Mountains of Ningwu County in northeast Shanxi, flows southeast into the basin of Taiyuan, and then south through the central valley of Shanxi before turning west to join the Yellow River west of Hejin. The Fen and...

 from the east and the Wei River from the west. At its juncture with the Wei the Yellow River turns east toward the North China Plain. One can go upstream on the Wei with the Qin Mountains with Mount Hua
Mount Hua
Mount Hua or Hua Shan in Chinese is located in Shaanxi Province, about 120 kilometres east of the city of Xi'an, near the city Huayin in China. Also known as Xiyuè, Western Great Mountain, it is one of China's Five Sacred Taoist Mountains, and has a long history of religious significance...

 on the south past Weinan
Weinan
Weinan is a Municipality in the province of Shaanxi, PRC. The Grand Historian Sima Qian was born in Weinan.-Administration:...

 to Xi'an
Xi'an
Xi'an is the capital of the Shaanxi province, and a sub-provincial city in the People's Republic of China. One of the oldest cities in China, with more than 3,100 years of history, the city was known as Chang'an before the Ming Dynasty...

, a former capital of China and now a large city. West of Xi'an is Xinyang
Xinyang
Xinyang is a prefecture-level city in southeastern Henan province, People's Republic of China, the southernmost such administrative division in the province.-Recent history:...

, the Qin dynasty
Qin Dynasty
The Qin Dynasty was the first imperial dynasty of China, lasting from 221 to 207 BC. The Qin state derived its name from its heartland of Qin, in modern-day Shaanxi. The strength of the Qin state was greatly increased by the legalist reforms of Shang Yang in the 4th century BC, during the Warring...

 capital. The river exits the mountains west of Baoji
Baoji
Baoji is a prefecture-level city in Shaanxi province, China.-Geography:The prefecture-level city of Baoji has a population of 3,716,731 according to the 2010 Chinese census, inhabiting an area of . The city itself has a population of approximately 800,000. Surrounded on three sides by hills,...

. There is a dam, the river narrows and becomes yellow and the railroad needs many bridges and tunnels all the way to Tianshui
Tianshui
Tianshui is the second largest city in Gansu province in northwest China. Its population is approximately 3,500,000.Tianshui lies along the route of the ancient Northern Silk Road at the Wei River, through which much of trade occurred between China and the west...

. Upstream various tributaries extend in the direction of Lanzhou.
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