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Date: 2015-02-10 17:24:11Black Thunder Coal Mine Economy of Wyoming Powder River Basin Bureau of Land Management Coal Jacobs Ranch Peabody Energy Rio Tinto Energy America Rawhide Mine Wyoming Mining in the United States Economic geology | Microsoft Word - ExSum_text.docAdd to Reading ListSource URL: www.blm.govDownload Document from Source WebsiteFile Size: 2,16 MBShare Document on Facebook |
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