2011. United States. Bureau of Transportation Statistics and United States. National Park Service. United States National Park System, 2013 is a polygon theme representing the National Park System.
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2008. Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). National Waterway Network is a line theme representing shipping lanes that serve as representative paths in open waterways. The data set covers the... U.S. Army Corps of Engineers Navigation Data Center.
2013. United States. Bureau of Transportation Statistics and United States. Department of Transportation. Research and Innovative Technology Administration. The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous states... U.S. Army Corps of Engineers Navigation Data Center.
2008. Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). United States National Waterway Network (node), 2008 is a point theme representing physical entities such as river confluences, ports/facilities, a... U.S. Army Corps of Engineers Navigation Data Center.
2011. United States. Bureau of Transportation Statistics and United States. Army. Corps of Engineers. The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous states...
2008. Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS) and Federal Highway Administration, Office of Planning, HEPP-1. Non-Attainment Areas: Sulfur Oxides is a polygon theme representing areas in the United States that do not meet the National Ambient Air Quality St... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).
2008. International Steering Committee for Global Mapping (ISCGM). United States Political Boundaries is an area theme representing administrative areas in United States. This layer is a component of the Global Map...
1981. United States Geological Survey and Economic and Social Research Institute (Reston, Va.). United States Populated Places is a point theme representing populated places in the United States as listed by the Geographic Names Information Sy... ESRI.
1981. United States Geological Survey and Environmental Systems Research Institute (Redlands, Calif.). United States Populated Places is a point theme representing populated places in the United States as listed by the Geographic Names Information Sy... Esri.
2011. United States. Bureau of Transportation Statistics. This data set includes cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities were collected from the 1970 National Atl... U.S. Geological Survey.