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![]() Date: 2015-06-22 14:50:06Geological surveys Geology of the United States Reston Virginia Exploration of North America San Mateo County California United States Geological Survey United States Department of the Interior Kentucky Geography Geology Robert M. Hirsch | Source URL: ky.water.usgs.govDownload Document from Source WebsiteFile Size: 797,95 KBShare Document on Facebook |