Mackenzie River
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Related to Disappointment River: Mackenzie Delta
Mackenzie River
A river of northwest Canada rising in Great Slave Lake in southern Northwest Territories and flowing about 1,740 km (1,080 mi) generally northwest to a vast delta on Mackenzie Bay, an arm of the Beaufort Sea. The Mackenzie Mountains west of the river along the Yukon border rise to 2,972 m (9,751 ft).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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| Noun | 1. |  Mackenzie River - a Canadian river; flows into the Beaufort SeaCanada - a nation in northern North America; the French were the first Europeans to settle in mainland Canada; "the border between the United States and Canada is the longest unguarded border in the world" |
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