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![]() Date: 2015-04-06 21:57:57Coal mining Black Thunder Coal Mine Economy of Wyoming Powder River Basin Peabody Energy Coal Wyodak Mine Jacobs Ranch Rawhide Mine Wyoming Mining in the United States Economic geology | Add to Reading List |
![]() | Geological Society of America 3300 Penrose Place P.O. Box 9140 Boulder, CO2020 • faxwww.geosociety.orgDocID: 1ro8j - View Document |
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![]() | Torrent Energy held 76,000 acres of mineral leases in Washington state and 107,000 acres in OregonDocID: 1r8Ud - View Document |
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