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Date: 2008-01-02 11:16:53Coal mining Economic geology Coal Sedimentary rocks Anthracite Black Mesa Arizona Black Mesa Book Cliffs Kaiparowits Plateau Geography of the United States Geography of North America Colorado Plateau | Chapter B A Summary of the Coal DepositsAdd to Reading ListSource URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 1,90 MBShare Document on Facebook |