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2010. Geological Survey (U.S.). This layer is a georeferenced raster image displaying elevation data for Alaska using an Albers projection. The elevation data were derived from Na... National Atlas of the United States.
2010. Geological Survey (U.S.). This polygon shapefile portrays the Public Land Surveys of the United States, including areas of private survey, donation land claims, and land gra... Geological Survey (U.S.).