2002. Ritters, Kurt. This raster layer is a grid map of North America including the Caribbean and most of Mexico in GeoTIFF format. The map layer is an excerpt from a g... National Atlas of the United States.
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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.
1944. Projection: Polyconic Projection; Series: AMS C401 Greenland 1:500,000 Topographic Series. National Geospatial-Intelligence Agency.
1940. Series: AMS C521 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
1934. Series: AMS C521 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
1933. Series: AMS C521 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
1949. Projection: Transverse Mercator Projection; Series: AMS C501 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
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.
1940. Series: AMS C521 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.