Category:Pittsburgh Coal Bed

Subcategories

This category has only the following subcategory.

Media in category "Pittsburgh Coal Bed"

The following 7 files are in this category, out of 7 total.

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  Bulletin of the Geological Society of America (1917) (20261419600).jpg 1,772 × 3,264; 1.08 MB
  
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  Fig 22 generalized columnar section of Washington County, PA.jpg 794 × 1,744; 129 KB
  
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  Montour no. 4 mine of the Pittsburgh Coal Company. 8d10280v.jpg 1,024 × 819; 247 KB
  
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  Pittsburgh นายกรัฐมนตรี เข้าร่วมการประชุมสมัชชาสหประ - Flickr - Abhisit Vejjajiva (38).jpg 5,120 × 3,413; 8.51 MB
  
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  Pittsburgh-1-.pdf 5,400 × 9,000; 11.87 MB
  
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  PittsburghCoalExtent.png 846 × 793; 79 KB
  
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  Pittsmall.gif 384 × 526; 25 KB