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Date: 2015-02-23 17:24:03Tazewell County Virginia Appalachian Mountains Cambrian Geography of the United States Geography of North America Ordovician | Stratigraphic Framework of Cambrian and Ordovician Rocks in the Central Appalachian Basin From Campbell County, Kentucky, to Tazewell County, Virginia By Robert T. Ryder, John E. Repetski, and Anita G. Harris Revised andAdd to Reading ListSource URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 65,31 KBShare Document on Facebook |