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| Carboniferous - Dunkard formation; Monongahela formation; Conemaugh formation; Allegheny formtion; Pottsville sandstone; Mauch Chunk shale; Greenbrier limestone lentil; Pocono sandstone (1) |
| Devonian - Catskill formation (1) |
| Geology -- United States --Maps (1) |
| Geology--Pennsylvania--Maps (1) |
| Neogene - Carmichael clay (1) |