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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.
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of United States railway system at 1:24,000 to 1:100,000 scale. This polyline shapefile depicts Amtrak... United States. Bureau of Transportation Statistics.
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of the United States railway system at 1:24,000 to 1:100,000 scale. This polyline shapefile covers all... United States. Bureau of Transportation Statistics.
2014. United States. Bureau of Transportation Statistics and Hunt, Raquel. The Rail Network is a comprehensive database of the nation's railway system at 1:24,000 to 1:100,000 scale. This point shapefile covers all 50 Stat... United States. Bureau of Transportation Statistics.
2014. United States. Bureau of Transportation Statistics and Jessberger, Steven. This point shapefile contains the locations of travel monitoring station sin the United States. The attributes for these databases have been intent... United States. Bureau of Transportation Statistics.