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Shapefile
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society
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Columbia
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United States
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2001
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1. United States National Atlas Urbanized Areas, 2012
2001. National Atlas of the United States and the United States Geological Survey and Environmental Systems Research Institute (Redlands, Calif.). United States National Atlas Urbanized Areas is a polygon theme representing urban areas in the United States derived from the urban areas layer of... Esri.
2. United States Urbanized Areas, 2008
2001. National Atlas of the United States and the United States Geological Survey and ESRI. United States Urbanized Areas is a polygon theme representing urban areas in the United States derived from the urban areas layer of the Digital Ch... ESRI.