Powder River Basin

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471	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
472	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
473	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
474	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
475	PDF Document Add to Reading List Source URL: pubs.usgs.gov Language: English - Date: 2006-03-28 11:15:03 Arsenic Fly ash Pyrite Bituminous coal Powder River Basin Sub-bituminous coal Chemistry Coal Matter