1849, 1850, 1851, 1852, 1853, 1854, 1855, 1856, and 1857. Arrowsmith, John, 1790-1873 and Stanford Geospatial Center. This layer is a georeferenced raster image of an historic regional map of Southern Africa showing the exploration routes of Dr. David Livingstone b... Stanford Digital Repository.
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1242. The Eagle Map of the United States Engraved for Rudiments of National Knowledge 1833 (Raster Image)
1833. Rumsey, David, 1944-, Churchman, Joseph and James, and Moore, I.W. This layer is a georeferenced image of a map of the United States, originally created by James and Joseph Churchman and I.W. Moore in 1833. The sta... Cartography Associates.
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.
2012. Geological Survey (U.S.). This layer is a georeferenced raster image displaying color-sliced elevation data for the Conterminous United States at 100-meter resolution, using... National Atlas of the United States.
2012. Geological Survey (U.S.). This layer is a georeferenced raster image displaying elevation data for the conterminous United States. These data were derived from the National ... National Atlas of the United States.
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for the conterminous United States. Data are in an Albers Equal-Area ... Geological Survey (U.S.).
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing land cover data for the conterminous United States, in an Albers Equal-Area Conic projection ... National Geospatial Program, The National Map Small Scale.
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.
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.