Images of Powder River coal mine

Images of Powder River coal mine
Images of a coal mine in the Powder River Basin, Wyoming. Presented at the 2009 Teaching Energy workshop.

File 17045 is a 277kB Acrobat (PDF)
Uploaded: Jun15 09
http://d32ogoqmya1dw8.cloudfront.net/files/NAGTWorkshops/energy09/images_powder_river_coal.pdf

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Provenance
Prepared by Jimm Myers, Univ Wyoming.
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