![]() ![]() USGS Imagery Topo - combines imagery with contours and other vector themes (boundaries, geographic names, hydrography, structures, and transportation), based on cartographic styling used on US Topo products.resolution may vary from 6 inches to 1 meter. USGS Imagery Only - combines imagery from the U.S.USGS Shaded Relief - created using data from the 3D Elevation Program (3DEP), which maintains a seamless dataset of best available raster elevation data for the conterminous United States, Alaska, Hawaii, and Territorial Islands of the U.S. ![]() Contours generated for the US Topo product are included and are visible along with other data to 1:9,000 zoom scale. ![]() USGS Topo - combines the most current data (boundaries, geographic names, transportation, elevation, hydrography, land cover, and other themes) that make up The National Map.The National Map Services offers a series of composite base maps that combine layers into tile cache services with the cartographic richness of multiple data sources. ![]()
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