National Geologic Map Database
Product Description Page
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Title: Map of rock types in bedrock of Allegheny County, Pennsylvania
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Author(s): Kohl, W.R., and Briggs, R.P.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Miscellaneous Field Studies Map MF-685-A
- Publication Date: 1975
- Map Scale: 1:50,000
- Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.