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AuthorWoolsey, Lester Hood, 1877-1961. (1)SubjectCarboniferous - Monongahela formation; Conemaugh formation; Ames limestone; Allegheny formation; Pottsville sandstone (1)Geology -- Pennsylvania -- Allegheny County -- Maps (1)
Geology -- Pennsylvania -- Beaver County -- Maps (1)
Geology -- United States --Maps (1)
Neogene - Carmichaels formation (1)
... View MoreDate Issued
1905 (1)
Type
Book (1)
Image (1)
Map (1)
Has File(s)Yes (1)