Top 25 Water Ports by Tonnage: 2011 Map

U.S. map showing that most tonnage through ports is concentrated in ports on the Gulf Coast and the inland waterway system.

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Source

U.S. Army Corps of Engineers, 2011 Waterborne Commerce of the United States, Part 5, National Summaries (Alexandria, VA: 2012), table 5-2, available at www.navigationdatacenter.us/wcsc/ as of September 17, 2013.

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