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Black River
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Black River

river, Asia
Also known as: Li-hsien Chiang, Pa-pien Chiang, Song Da
Written and fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

Black River, one of the chief tributaries of the Red River (Song Hong) in southeastern Asia. Nearly 500 miles (800 km) long, the river rises in central Yunnan province in southwestern China and flows southeastward into northwestern Vietnam on a course parallel to the Red River. Near the city of Hoa Binh, 37 miles (60 km) southwest of Hanoi, the Black River is dammed to form a reservoir that is the largest in Vietnam. The...

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