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2014. National Atlas of the United States. This line shapefile includes Global Map data showing railroads in the conterminous United States and Alaska. The data are a modified version of the... National Atlas of the United States.
2014. National Atlas of the United States. This line shapefile includes Global Map data showing streams in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modifie... National Atlas of the United States.
2014. National Atlas of the United States. This point shapefile represents airports in the United States, Puerto Rico, and the Virgin Islands. This layer includes 1:1 million scale data from... National Atlas of the United States.
2014. National Atlas of the United States. This point shapefile includes Global Map data showing cities and towns in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are... National Atlas of the United States.
2014. National Atlas of the United States. This point shapefile includes Global Map data showing Amtrak intercity railroad terminals in the United States. The data are a modified version of ... National Atlas of the United States.
2002. EROS Data Center. The grayscale conterminous United States shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of the co... National Atlas of the United States.
2002. EROS Data Center. The grayscale conterminous United States shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of the co... National Atlas of the United States.
1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002. EROS Data Center. The grayscale North America shaded relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with... National Atlas of the United States.
2001, 2002, 2003, 2004, 2005, 2006, and 2007. National Atlas of the United States. This polygon shapefile portrays the hazardous waste generated, shipped, and received by state and other areas within the United States, Puerto Rico... National Atlas of the United States.
International Heat Flow Commission, International Association of Seismology and Physics of the Earth's Interior, and Oklahoma State University. Department of Geography. Cartography Service. This point shapefile contains heat flow data for Georgia compiled from sources with an unknown date. Heat flow is a measure of heat loss across the... International Heat Flow Commission.