Top 25 Water Ports by Tonnage: 2006 Map
![U.S. map showing that most tonnage through ports is concentrated along the Gulf Coast.](images/lo_res_jpg/top25wptonnage2006.jpg)
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Source
U.S. Army Corps of Engineers, 2006 Waterborne Commerce of the Part 5, National Summaries (New Orleans, LA: 2007), Table 5-2.
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