2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). World Wildlife Fund Terrestrial Ecoregions represents global terrestrial ecoregions. Ecoregions are defined as relatively large areas of land or wa... ESRI.
Search Results
1996. Environmental Systems Research Institute (Redlands, Calif.). World Cities represents the locations of major cities of the world. ESRI.
1996. Environmental Systems Research Institute (Redlands, Calif.). World Country Boundaries represents the boundary lines for the countries of the world. ESRI.
1996. Environmental Systems Research Institute (Redlands, Calif.). World Country Boundaries (Generalized) represents the generalized boundary lines for the countries of the world. ESRI.
1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing airports and airfields worldwide and was published as part of the USGS Global GIS : global coverage... American Geological Institute.
1997. United States. National Imagery and Mapping Agency. This datalayer is a polyline coverage representing major roads worldwide and was published as part of the USGS Global GIS : global coverage databas... American Geological Institute.
2003. Environmental Systems Research Institute (Redlands, Calif.). This dataset is a polyline coverage representing the Bailey Equal-Area Grid. The Bailey Equal-Area Grid is an area-reference grid that uses meridia... American Geological Association.
1997. United States. National Imagery and Mapping Agency. This datalayer is a polygon coverage representing country political boundaries worldwide and was published as part of the USGS Global GIS : global ... American Geological Institute.
2003. EROS Data Center, Geological Survey (U.S), American Geological Institute, and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a polygon coverage representing hydrologic drainage basins located worldwide. The data displayed here is derived from the HYDRO 1... American Geological Institute.
1973. American Geological Institute, Geological Survey (U.S.), Environmental Systems Research Institute (Redlands, Calif.), National Earthquake Information Center, and National Geophysical Data Center. This datalayer is a point coverage representing earthquake epicenters (1973 through March, 2003). Historical data for this layer were derived from:... American Geological Institute.