USGS Digital Raster Graphic Files
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{'Title': '', 'Author': '', 'Comments': 'USGS Digital Raster Graphic Files', 'Subject': 'USGS Digital Raster Graphic Files', 'Category': '', 'AntialiasingMode': 'None', 'TextAntialiasingMode': 'Force', 'Keywords': 'USGS,DRG,digital raster graphic,topographic maps,7.5 minute,24K,100K,250K,ISGS,Illinois'}
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