↑ Monongahela Group ↑
Conemaugh Group
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Morantown |
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Little Pittsburgh |
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2nd Little Pittsburgh |
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Franklin Rider |
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Little Clarksburg |
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Normantown |
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Little Hoffman |
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Upper Clarysville |
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Lower Clarysville |
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Wellersburg Rider |
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Wellersburg |
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Barton Rider |
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Elk Lick |
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West Milford |
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Federal Hill |
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Skelly Marine Zone |
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Duquesne |
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Ames Marine Zone |
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Harlem |
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Noble Marine Zone |
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Upper Bakerstown |
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Portersville Marine Zone |
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Bakerstown |
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Cambridge Marine Zone |
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Wilgus |
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Pine Creek Marine Zone |
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Brush Creek Marine Zone |
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Brush Creek |
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Mahoning |
↓ Allegheny Formation ↓