National Geologic Map Database
Product Description Page
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Title: Maps showing aerial extent of selected Paleozoic shales in the northern midcontinent, U.S.A.
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Author(s): Pratt, W.P.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Miscellaneous Field Studies Map MF-1835-H
- Publication Date: 1992
- Map Scale: 1:1,000,000
- Cross Section: None
- North Latitude: 46° 0' 0" N (46.0000)
- South Latitude: 36° 0' 0" N (36.0000)
- East Longitude: 88° 0' 0" W (-88.0000)
- West Longitude: 100° 0' 0" W (-100.0000)
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