NEGRO, RÍO, River, Colombia, Venezuela, and Brazil
| river, c.1,400 mi (2,250 km) long, rising as the Guainía River in E Colombia where it flows NE before turning south to form part of the Colombia-Venezuela border. It then flows SE through Amazonas state, Brazil, to the Amazon near Manaus. The river is filled with islands and has many secondary channels. Its main tributary is the Río Branco. The Río Negro is connected with the Orinoco basin by the Casiquiare, a natural canal. An important commercial channel (rubber and nuts are shipped on it), the Río Negro was discovered (1638) by Pedro Teixeira, a Portuguese explorer. The river was named for its black color, which results from vegetal debris, not sediment. ____________________The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved. -33647- | |
|
About Questia
Questia is the world's largest online academic library offering full-text books, journals, and articles on thousands of topics.
Join Now...
|
|
Questia Books and Articles on: Negro RIo River Colombia Venezuela and Brazil
|
| We found: |
27 results |
By media type: |
Books: | Journal articles: | Magazine articles: | Newspaper articles: | Encyclopedia articles: |
|
|