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2013. Geological Survey (U.S.). This point shapefile contains selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2013. Gaging s... Geological Survey (U.S.).
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.).
2004, 2005, 2006, and 2007. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This point shapefile represents cities and towns in the United States at 1:2,000,000 scale. This layer is part of the 2014 ESRI Data and Maps colle... Environmental Systems Research Institute (Redlands, Calif.).
2011. Vanderbilt Engineering Center for Transportation Operations and Research, United States. Bureau of Transportation Statistics, and Waterborne Commerce Statistics Center (U.S.). The National Waterway Network is comprised of a link database and a node database. Links are line strings, which consist of beginning and end point... United States. Bureau of Transportation Statistics.