1992. Geological Survey (U.S.). This raster layer is a georeferenced image of 1992 land cover for the conterminous United States, at a resolution of 200 meters. The map layer was ... Geological Survey (U.S.).
1987, 1988, 1989, 1990, 1991, 1992, and 1993. National Atlas of the United States. The Satellite View of the Conterminous United States, with Shaded Relief map layer is a 200-meter-resolution simulated-natural-color image of the U... National Atlas of the United States.
1992. Wade, Tim. This raster image is a 270-meter resolution grid map of the conterminous United States in GeoTIFF format, created from National Land Cover Data (NL... National Atlas of the United States.
2002. National Atlas of the United States. The color conterminous United States shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of the conter... National Atlas of the United States.
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.
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.