2001. National Atlas of the United States. The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived fr... National Atlas of the United States.
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2001. National Atlas of the United States. The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2... National Atlas of the United States.
2003. USGS National Center for EROS. The North America Shaded Relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with a horizon... National Atlas of the United States.
2016. Geological Survey (U.S.). This shapefile layer serves as an index map for individual sheets in the Global 30 Arc-Second Elevation map series. These maps are comprise a digit... East View Cartographic, Inc.
2016. Geological Survey (U.S.). This raster layer is part of a digital elevation model (DEM) that offers global coverage at 30-arc seconds, or approximately 1 kilometer pixel spac... East View Cartographic, Inc.
2016. Geological Survey (U.S.). This raster layer is part of a digital elevation model (DEM) that offers global coverage at 30-arc seconds, or approximately 1 kilometer pixel spac... East View Cartographic, Inc.
2002. EROS Data Center. The grayscale Alaska shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of Alaska at a resolution of ... National Atlas of the United States.
2005. EROS Data Center. The grayscale North America shaded relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with... National Atlas of the United States.
2005. National Atlas of the United States. The Topographic and Bathymetric Shaded Relief of North America map layer shows depth and elevation ranges using colors, with relief enhanced by sha... National Atlas of the United States.