Red River
American Heritage Dictionary:
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Red River
or in China Yu·an Jiang (yū'än' jyäng', ywän') and in Vietnam Hong Ha (hông' hä') or Song Hong (sông' hông') A river of southeast Asia rising in southern China and flowing about 1,175 km (730 mi) generally south through northern Vietnam to a fertile delta on the Gulf of Tonkin.
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Red River
Britannica Concise Encyclopedia:
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Red River
River, Southeast Asia. It rises in central Yunnan province, southwestern China, and flows southeast across northern Vietnam, past Hanoi, into the Gulf of Tonkin. The principal river of northern Vietnam, it is about 750 mi (1,200 km) long and has a wide, fertile delta east of Hanoi.
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Columbia Encyclopedia:
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Red River
Red River, Chinese Yuan Chiang, Vietnamese Song Hong, chief river of N Vietnam, 730 mi (1,175 km) long, rising in Yunnan prov., S China, and flowing southeast, in deep, narrow gorges, through N Vietnam to form a great delta before entering the Gulf of Tonkin. The river carries a large quantity of silt, rich in iron oxide, that gives it a red color. Northwest of Hanoi the river flows onto the coastal plain and receives the Clear and Black rivers, its chief tributaries. The Red River delta, c.75 mi (120 km) long and 75 mi wide, is the economic center of N Vietnam, whose chief port, Haiphong, is on the delta's north branch. Rice is the principal crop of the river valley; wheat, beans, rapeseed, corn, and subtropical crops are also grown. The Red River has an irregular flow and is subject to flooding, especially during the June-October high water period; dikes and canals protect the delta from floodwaters. A railroad and highway follow the Red River valley, an important transportation route linking China and Vietnam.
Wikipedia on Answers.com:
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Red River (Asia)
| Sông Hồng | |
| Sông Thao, Hồng Hà, Nhị Hà, Nhĩ Hà, sông Cái, Nguyên Giang |
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| Sông | |
 |
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| Countries | China, Vietnam |
|---|---|
| Provinces | Yunnan, Lao Cai province, Yen Bai province, Phu Tho province, Ha Noi, Vinh Phuc province, Hung Yen province, Ha Nam province, Thai Binh province, Nam Dinh province |
| Tributaries | |
| - left | Lô |
| - right | Đà |
| Source | |
| - location | Hengduan Mountains, Weishan, Dali, Yunnan, China |
| - elevation | 1,776 m (5,827 ft) |
| Secondary source | |
| - location | TBD, Xiangyun, Dali, Yunnan, China |
| Source confluence | |
| - elevation | 1,200 m (3,937 ft) |
| - coordinates | 25°1′49″N 100°48′56″E / 25.03028°N 100.81556°E |
| Mouth | Ba Lạt |
| - location | (boundary between Tiền Hải and Giao Thủy) |
| - elevation | 0 m (0 ft) |
| - coordinates | 20°14′43″N 106°35′20″E / 20.24528°N 106.58889°E |
| Length | 1,149 km (714 mi) |
| Basin | 143,700 km2 (55,483 sq mi) |
| Discharge | mouth |
| - average | 2,640 m3/s (93,231 cu ft/s) |
| - max | 30,000 m3/s (1,059,440 cu ft/s) |
| - min | 700 m3/s (24,720 cu ft/s) |
| Discharge elsewhere (average) | |
| - Việt Trì | 900 m3/s (31,783 cu ft/s) |
 Red River and its tributaries.
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The Red River (Vietnamese: Sông Hồng; Chinese: 红河; pinyin: Hóng Hé), also known as the Sông Cái - Mother River (Vietnamese), or Yuan River (Chinese), is a river that flows from southwest China through northern Vietnam to the Gulf of Tonkin. According to C.Michael Hogan, the associated Red River Fault was instrumental in forming the entire South China Sea at least as early as 37 million years before present.
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Contents
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Geography
The Red River begins in China's Yunnan province in the mountains south of Dali. It flows generally southeastward, passing through Dai ethnic minority areas before leaving China through Yunnan's Honghe Autonomous Prefecture. It enters Vietnam at Lào Cai Province. It forms a portion of the international border between China and Vietnam. Once reaching the lowlands near Viet Tri, the river and its distributaries spread out to form the Red River Delta. The Red River flows past the Vietnamese capital Hanoi before emptying into the Gulf of Tonkin. Tonkin is the former name of the northern provinces of Vietnam and thus the eponymous body of water receiving the main river of "Tonkin".
The reddish-brown heavily silt-laden water gives the river its name. The Red River is notorious for its violent floods with its seasonally wide volume fluctuations. The delta is a major agricultural area of Vietnam with vast area devoted to rice. The land is protected by an elaborate network of dikes and levees.
In the 19th century, the river was thought to be a lucrative trade route to China. It was the forced opening of the Red River to European commerce that prompted the 1883–1886 wars between France and the Vietnamese court, culminating in the conquest of Vietnam.
The Black River and Lô River are the Red River's two chief tributaries.
Settlements
China
Vietnam
See also
References
- C.Michael Hogan (2011) South China Sea Topic ed. P.Saundry. Ed.-in-chief C.J.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC
- earthtrends.wri.org, Water Resources eAtlas, Hong (Red River)
External links
Media related to Red River (Asia) at Wikimedia Commons
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.
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Britannica Concise Encyclopedia
Britannica Concise Encyclopedia. © 1994-2012 Encyclopædia Britannica, Inc. All rights reserved. Read more
Columbia Encyclopedia
The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2012, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/.
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