Category:Coal diagrams of the United States

Subcategories

This category has the following 2 subcategories, out of 2 total.

Media in category "Coal diagrams of the United States"

The following 3 files are in this category, out of 3 total.

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  Coal Rank USGS.png 2,132 × 2,665; 140 KB
  
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  Coal Stratigraphy Powder River Basin.png 1,475 × 1,725; 58 KB
  
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  Profiles of the canals and rail roads for transporting anthracite coal from the several coal fields to the city of New York (NYPL b20643916-5800302).tiff 10,328 × 7,760, 2 pages; 229.61 MB