Category:Clays of the Pottsville Formation

Subcategories

This category has only the following subcategory.

Media in category "Clays of the Pottsville Formation"

The following 4 files are in this category, out of 4 total.

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  Middle Mercer Clay (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 1 (33097389782).jpg 4,000 × 3,000; 6.88 MB
  
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  Middle Mercer Clay (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 2 (33097380832).jpg 3,000 × 4,000; 7.39 MB
  
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  Underclay below the Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1 (30236490233).jpg 4,000 × 3,000; 4.4 MB
  
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  Underclay below the Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 2 (30835648336).jpg 4,000 × 3,000; 4.88 MB