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2011. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polygon shapefile contains United States administrative county boundaries extracted from the U.S. Census Bureau's MAF/TIGER Database (MTDB). T... United States. Bureau of Transportation Statistics.
2013. United States. Bureau of Transportation Statistics and Rawson, Peg. This polygon shapefile contains United States congressional district boundaries for 2013-2015. Congressional Districts are the 435 areas from which... United States. Bureau of Transportation Statistics.
2014. United States. Bureau of Transportation Statistics. This polygon shapefile contains United States county boundaries with political limits extracted from the U.S. Census Bureau's MAF/TIGER Database (M... United States. Bureau of Transportation Statistics.
2013. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polygon shapefile contains areas of metroplitan and micropolitan statistics extracted from the United States Census MAF/TIGER Database (MTDB).... 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 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.