2004. United States. Forest Service. This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.... National Atlas of the United States.
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2004. National Atlas of the United States. This point shapefile includes cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities were collected from the 1970 Natio... National Atlas of the United States.
2004. Environmental Systems Research Institute (Redlands, Calif.). World Countries 2004 represents the boundaries for the countries of the world, as they existed in January 2004. ESRI.
2004. Environmental Systems Research Institute (Redlands, Calif.). World Countries (Generalized) represents generalized boundaries for the countries of the world, as they existed in January 2004. ESRI.
2004. Geological Survey (U.S.), Smithsonian Institution. Global Volcanism Program, and Environmental Systems Research Institute (Redlands, Calif.). U.S. National Atlas Volcanoes represents volcanoes thought to be active in the last 10,000 years, in and near the United States. The data are a sub... ESRI.
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This line shapefile shows the coastline, linear hydrographic features, and area hydrographic features in North America. This data set was produced ... Geological Survey (U.S.).
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This polygon shapefile shows areas of coastline, and other hydrographic features in North America. This data set was produced using digital files s... Geological Survey (U.S.).
2004. East View Cartographic, Incorporated and East View Cartographic, Incorporated. LandScan 2004 Global Population Database is a raster theme representing population counts at 30 arc second resolution (1 km. or finer) as of 2004. East View Cartographic, Incorporated.
2004. Oak Ridge National Laboratory. The LandScan 2004 global population data set is a worldwide population database compiled on a 30" X 30" latitude/longitude grid. Census counts (at ... Oak Ridge National Laboratory.
2004. This raster dataset contains population counts at 30 arc second resolution (1 km. or finer) for 2004. LandScan integrates daytime movements and col... Oak Ridge National Laboratory.
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