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| | United States River Basins (Site not responding. Last check: 2007-09-19) |
 | | These geographic areas contain either the drainage area of a major river, such as the Missouri region, or the combined drainage areas of a series of rivers, such as the Texas-Gulf region, which includes a number of rivers draining into the Gulf of Mexico. |
 | | The 8 longest rivers in the U.S. are (in descending order) Missouri, Mississippi, Yukon, St. Lawrence (if you count the Great Lakes and its headwaters as one system), Rio Grande, Arkansas, Colorado, Ohio. |
 | | The Missouri River is about 2,540 miles long, making it the longest river in North America. |
| www.waterconflicts.com /WCRivers.htm (475 words) |
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