1956. Downloaded from CIA Flickr page: https://www.flickr.com/photos/ciagov/albums/72157674885572481/with/30252922504/; Series: CIA Declassified Maps. Central Intelligence Agency.
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1956. Projection: WGS72 Mercator Projection; Series: United States Navy Antarctic Nautical Charts. Naval Oceanographic Office.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. Projection: Polar Stereographic Projection: Standard Parallel 71º; Series: USGS 1:500,000 Topographic Reconnaissance Series. United States Geological Survey.
1956. The Polar Geospatial Center curates a polar historical and contemporary map catalog from many organizations. Historical paper maps have been digita...