1992. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:50,000 Topographic Series. United States Geological Survey.
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1978. Projection: Lambert Conformal Conic Projection: Standard Parallels -72º40' and -75º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1989. Projection: Lambert Conformal Conic Projection: Standard Parallels -68º40' and -71º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Geological Survey (U.S.). Culture and drainage in part compiled from aerial photographs taken 1946 and 1953. Topography by plane-table surveys 1954-1955.;Relief shown by con... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1949. Projection: Transverse Mercator Projection; Series: AMS C501 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
346. Blaaso: Greenland
1952. Projection: Transverse Mercator Projection; Series: AMS C501 Greenland 1:250,000 Topographic Series. National Geospatial-Intelligence Agency.
1968. Projection: Polar Stereographic Projection: Standard Parallel -80º14'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1944. Projection: Polyconic Projection; Series: AMS C401 Greenland 1:500,000 Topographic Series. National Geospatial-Intelligence Agency.
1941. Projection: Polyconic Projection; Series: AMS C401 Greenland 1:500,000 Topographic Series. National Geospatial-Intelligence Agency.
1970. Geological Survey (U.S.). Spatial references;Sectional grid;Roads, waterways, major public works, railroads, land and cultural features;Relief shown by contours and spot hei... State Geological Survey Division (Urbana, Ill.) and Geological Survey (U.S.).