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2010, 2011, and 2012. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This point shapefile represents airports in the United States, Puerto Rico, and U.S. Virgin Islands with airport passenger enplanements of 25 passe... Environmental Systems Research Institute (Redlands, Calif.).
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008. Environmental Systems Research Institute (Redlands, Calif.) and United States. Bureau of Transportation Statistics. This line shapefile represents rural and urban interstate highways. U.S. National Transportation Atlas Interstate Highways is part of the National ... Environmental Systems Research Institute (Redlands, Calif.).
1998, 1999, 2000, 2001, and 2002. United States. Bureau of Transportation Statistics, United States. Federal Railroad Administration, and Environmental Systems Research Institute (Redlands, Calif.). This line shapefile represents a comprehensive database of the nation's railway system at 1:100,000 scale. The data set covers the 48 contiguous St... Environmental Systems Research Institute (Redlands, Calif.).