Robert A. Muller
Contributor
Professor of Geography and Anthropology; Director, Southern Regional Climate Center, Louisiana State University, Baton Rouge. Coauthor of Physical Geography Today and others.
Primary Contributions (1)
Mississippi River, the longest river of North America, draining with its major tributaries an area of approximately 1.2 million square miles (3.1 million square km), or about one-eighth of the entire continent. The Mississippi River lies entirely within the United States. Rising in Lake Itasca inβ¦
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