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Start Over You searched for: Year 2012 Remove constraint Year: 2012 Resource Type Polygon data Remove constraint Resource Type: Polygon data Subject Glaciers Remove constraint Subject: Glaciers

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2012. National Atlas of the United States and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the water feature areas (for example, glaciers, lakes, reservoirs, and swamps) of the United States at 1:1,000,00... Environmental Systems Research Institute (Redlands, Calif.).
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile includes name attributes for major polar glaciers and more recently de-glaciated areas and does not include scale rank attri... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts major polar glaciers and more recently de-glaciated areas. Includes name attributes for major polar glaciers, but do... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile includes name attributes for major polar glaciers and more recently de-glaciated areas and does not include scale rank attri... North American Cartographic Information Society.