2013. Geological Survey (U.S.). This raster layer is a georeferenced image containing a 100-meter resolution land and water mask of the conterminous United States, with separate v... National Atlas of the United States.
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2007. Geological Survey (U.S.). This raster layer is a georeferenced image containing tree canopy data for the conterminous United States, in an Albers Equal-Area Conic projection... Geological Survey (U.S.).
2007. World Wildlife Fund (WWF). This drainage direction map for Central America defines the direction of flow from each cell in the conditioned digital elevation model to its stee... U.S. Geological Survey.
2007. World Wildlife Fund (WWF). This drainage direction map for Central America defines the direction of flow from each cell in the conditioned digital elevation model to its stee... U.S. Geological Survey.
2007. World Wildlife Fund (WWF). HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales)flow accumulation maps define amount of upstream a... U.S. Geological Survey.
2007. World Wildlife Fund (WWF). HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales)flow accumulation maps define amount of upstream a... U.S. Geological Survey.
Great Britain, Admiralty., Potter, J. D. (John Dennett), active 1830-1892, and Evans, F. J. (Frederick John), 1815-1885. Compiled from the most recent Surveys in the Hydrographic Office, 1877 ; Published at the Admiralty, 15th May 1877, under the Superintendence of Ca... Admiralty Hydrographic Office,.
2007. World Wildlife Fund. This river network (stream lines) map for Central America is derived from the flow direction map for Central America. The flow accumulation map for... Geological Survey (U.S.).
2007. World Wildlife Fund. This river network (stream lines) map for Central America is derived from the flow direction map for Central America. The flow accumulation map for... Geological Survey (U.S.).
1809. Pinkerton, John, 1758-1826 and Stanford Geospatial Center. This layer is a georeferenced raster image of an historic regional map of Southern Africa originally created by John Pinkerton and illustrated by L... Stanford Digital Repository.