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2009. World Wildlife Fund. This river network (stream lines) map for North America is derived from the flow direction map for North America. The flow accumulation map for Nor... Geological Survey (U.S.).
1990. Angel, Shlomo, Parent, Jason, Civco, Daniel L., and Blei, Alejandro M. This raster layer contains the total area occupied by the built-up area of Minneapolis, Minnesota, United States and its urbanized open space in 19... Lincoln Institute of Land Policy.
2000. Angel, Shlomo, Parent, Jason, Civco, Daniel L., and Blei, Alejandro M. This raster layer contains the total area occupied by the built-up area of Minneapolis, Minnesota, United States and its urbanized open space in 20... Lincoln Institute of Land Policy.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the boundary between island ponds and islands at high resolution. High represents an 80 percent reduction in size... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the boundary between island ponds and islands at low resolution. GSHHG data are made available at 5 resolutions, ... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the boundary between island ponds and islands at intermediate resolution. Intermediate represents an 80 percent r... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the boundary between island ponds and islands at low resolution. Low represents an 80 percent reduction in size a... United States. National Geospatial-Intelligence Agency.
1816. Rumsey, David, 1944- and Scott, Bradford. This layer is a georeferenced image of a map of the United States in 1816. The original map appears in "North America; United States of America By ... Cartography Associates.
1971. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.
1978. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the sulfur diox... United States. Bureau of Transportation Statistics.