2009. Hallman, Sechrist, Mullins, Alberts. 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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1995. Jean-Claude M. Thomas. Projection: Lambert Conformal Conic Projection - Standard Parallels -76º40' and -79º20'; Series: USGS Satellite Image Maps. United States Geological Survey.
1963. Projection: Lambert Conformal Conic Projection: Standard Parallels -72º40' and -75º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1989. Projection: Polar Stereographic Projection: Standard Parallel -80º14'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1963. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1974. Series: USGS Satellite Image Maps. United States Geological Survey.
1989. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1997. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:50,000 Topographic Series. United States Geological Survey.
1974. Series: USGS Satellite Image Maps. United States Geological Survey.
1968. Projection: Lambert Conformal Conic Projection: Standard Parallels -72º40' and -75º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.