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File:Pittsburgh-1-.pdf

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Description
English: Areal Extent of the Pittsburg Coal Bed
Date
Source http://pubs.usgs.gov/of/1996/of96-280/pittsburgh.pdf
Author L. Ruppert, S. Tewalt and L. Bragg

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Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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Date/TimeThumbnailDimensionsUserComment
current16:24, 17 January 2010Thumbnail for version as of 16:24, 17 January 20105,400 × 9,000 (11.87 MB)FrostStarX (talk | contribs){{Information |Description={{en|1=Areal Extent of the Pittsburg Coal Bed}} |Source=http://pubs.usgs.gov/of/1996/of96-280/pittsburgh.pdf |Author=L. Ruppert, S. Tewalt and L. Bragg |Date=1996 |Permission= |other_versions= }} Category:Coal Bed

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