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AuthorPhalen, William Clifton, 1877-1949. (1)Subject
Carboniferous - Conemaugh formation; Allegheny formation; Pottsville formation; Mauch Chunk shale; Pocono formation (1)
Devonian - Catskill formation (1)Geology -- United States --Maps (1)Geology--Pennsylvania--Maps (1)
Neogene - unnamed strata (1)
... View MoreDate Issued1910 (1)TypeBook (1)Image (1)
Map (1)
Has File(s)Yes (1)