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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.).
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This point shapefile depicts areas and point labels of major points of elevation worldwide. Data was derived primarily from the Florida Resources a... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This point shapefile depicts areas and point labels of major points of elevation worldwide. Data was derived primarily from the Florida Resources a... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This point shapefile depicts areas and point labels of major points of elevation worldwide. Data was derived primarily from the Florida Resources a... North American Cartographic Information Society.