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571	PDF Document Add to Reading List Source URL: www.oregonstateparks.org Language: English Oregon Route 7 Powder River Baker City Oregon Dredging Oregon Sumpter Valley Gold Dredge Sumpter Valley Railway
572	PDF Document Add to Reading List Source URL: www.peabodyenergy.com Language: English - Date: 2012-05-23 14:32:50 Geology Powder River Basin Peabody Coal Economic geology Peabody Energy Energy
573	PDF Document Add to Reading List Source URL: www.handbookofmineralogy.com Language: English - Date: 2007-09-30 01:25:32 Economic geology Geology of the Rocky Mountains Ferroselite selenides Pyrite Uraninite Uranium Ore Powder River Basin Chemistry Matter Crystallography
574	PDF Document Add to Reading List Source URL: www.bnsf.com Language: English - Date: 2013-06-13 16:04:49 Belle Ayr Mine Dry Fork Mine Eagle Butte Mine Rawhide Mine Powder River Basin Wyodak Mine Coal Black Thunder Coal Mine Sub-bituminous coal Wyoming Mining in the United States Economic geology
575	PDF Document Add to Reading List Source URL: ota-cdn.fas.org Language: English - Date: 2013-04-10 17:41:10 Energy Transport Coal pipeline Slurry pipeline Energy development Coal Powder River Basin Energy law Pipeline transport Technology Pipelines Economic geology
576	PDF Document Add to Reading List Source URL: pubs.usgs.gov Language: English - Date: 2002-02-13 09:19:22 Coal mining Sedimentary rocks Coal Geography of Montana Powder River Basin Bituminous coal West Virginia Appalachian Mountains Illinois Basin Geography of the United States United States Economic geology
577	PDF Document Add to Reading List Source URL: www.members.iinet.net.au Language: English - Date: 2008-06-04 07:12:11 Energy economics Geology Geography of Montana Geography of Wyoming Geology of the Rocky Mountains Powder River Basin Western Fuels Association Coal Dry Fork Mine Economic geology Energy Wyoming
578	PDF Document Add to Reading List Source URL: earthjustice.org Language: English - Date: 2012-02-23 12:44:59 California Coal Earthjustice Sierra Club Environmental protection Environmental social science Fossil-fuel power station Powder River Basin Fly ash Environment Economic geology Energy
579	PDF Document Add to Reading List Source URL: rruff.geo.arizona.edu Language: English Economic geology Geology of the Rocky Mountains Ferroselite selenides Pyrite Uraninite Uranium Ore Powder River Basin Chemistry Matter Crystallography
580	PDF Document Add to Reading List Source URL: leighhistorical.org.uk Language: English - Date: 2009-11-18 08:06:10 Rivers of Kent Explosives Swale Cordite Gunpowder Powder mill Faversham River Medway Haysden Country Park Counties of England Kent Geography of England

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