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  • Radar mosaic, Yellowstone National Park, Wyoming.

    Scale not given. Accompanied by Dept. of the Interior news release: Radar probes geologic past of Yellowstone National Park. Available also through the Library of Congress Web site as a raster image. ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1968
  • Tennessee-North Carolina.

    Available also through the Library of Congress web site as a raster image. map : col. ; 46 x 38 cm.

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1895