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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts minor islands that are 2 sq. km. or less in size. These data were derived from the National Oceanic and Atmospheric ... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts minor islands worldwide that are 2 sq. km. or less in size. The smallest base unit where multipart polygons per each... North American Cartographic Information Society.