Tumen

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Related to Tumens: Tümen
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Tumen

 

(Chinese Turnen Chiang; Korean Tuman-gang), a river, most of which forms the northern boundary between the People’s Republic of China and the People’s Democratic Republic of Korea; the lower course forms the boundary between the People’s Democratic Republic of Korea and the USSR.

The Tumen River is 521 km long and drains an area of 41,200 sq km. Rising on a plateau of the Changpai Shan, the river flows for a long distance through a deep, narrow valley between the North Korea Mountains and the East Manchurian Mountains; in the lower course it flows over a hilly plain and divides into arms. It empties into the Sea of Japan. The Tumen River freezes in November, and the ice breaks up in March or April. During the spring high water, the river is navigable for junks 100 km upstream from the mouth. It is used for irrigation. The Korean cities of Musan and Hoeryong are situated on the Tumen River.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
9 My study, "Mongol Nomadism and Middle Eastern Geography: Qishlaqs and Tumens," will appear in The Mongol Empire and Its Legacy, ed.
But then, in the spring of 1260, most of the Mongols withdrew from Syria, leaving an occupying force of one tumen (a unit nominally of 10,000 men).
The caliphal campaign in October and November, therefore, probably coincided with the migratory return to winter pastures around Baghdad of a Mongol tumen, which sent the five thousand troops who destroyed the caliph and his four hundred men.