2012. National Atlas of the United States. This polygon shapefile portrays the state boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was created by e... National Atlas of the United States.
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2012. Oak Ridge National Laboratory. This raster dataset contains population counts at 30 arc second resolution (1 km. or finer) for 2012. "Using an innovative approach with Geographic... Oak Ridge National Laboratory.
2012. Oak Ridge National Laboratory. This raster dataset is a subdirectory containing the ArcGIS grid (world_admin1) of the countries/sub-countries. These are the standard Level 1 Admi... Oak Ridge National Laboratory.
2012. Oak Ridge National Laboratory. This raster dataset is a grid of world countries. These are the standard country boundaries. Also included is a DBF (countries.dbf) giving the coun... Oak Ridge National Laboratory.
2012. United States. Bureau of Transportation Statistics and United States. Bureau of the Census. Geography Division. This polygon shapefile depicts state boundaries extending into the ocean with detailed shorelines, including all 50 states plus Puerto Rico, Washin... United States. Bureau of Transportation Statistics.
2012. United States. Bureau of Transportation Statistics and United States. Bureau of the Census. Geography Division. This polygon shapefile depicts state boundaries with politicial limit extending into the ocean with detailed shorelines, including all 50 states pl... United States. Bureau of Transportation Statistics.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states, the smallest subdivisions, or map subunits, of which are countries subdivided by non-contiguou... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states, the smallest subdivisions, or map subunits, of which are countries subdivided by non-contiguou... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states, the smallest divisions, or map units, of which are countries. These rarely correspond to actua... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states, the smallest divisions, or map units, of which are countries. These rarely correspond to actua... North American Cartographic Information Society.