National Geologic Map Database
Product Description Page
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Title: Geologic map of the Black Rock Wilderness Study Area, Graham County, Arizona
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Author(s): Simons, F.S.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Miscellaneous Field Studies Map MF-1918
- Publication Date: 1987
- Map Scale: 1:24,000
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.