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Format
Shapefile
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Subject
environment
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Collection
National Transportation Atlas Databases (NTAD) 2013
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Institution
Columbia
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Year
2011
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1. United States Hydrographic Polygons, 2013
2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, and United States. Bureau of the Census. The hydro polygon/arc coverages were created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county hyd... U.S. Bureau of the Census (BOC).