National Geologic Map Database
Product Description Page
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Title: Preliminary integrated geologic map databases for the United States: Minnesota, Wisconsin, Michigan, Illinois, and Indiana [Superseded by Horton and others, 2017, U.S. Geological Survey, Data Series DS-1052]
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Author(s): Nicholson, S.W., Dicken, C.L., Foose, M.P., and Mueller, Julie
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Publishing Organization: U.S. Geological Survey
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Series and Number: Open-File Report OF-2004-1355
- Publication Date: 2004
- Map Scale: 1:500,000
- Cross Section: None
- North Latitude: 49° 22' 54" N (49.3817)
- South Latitude: 36° 58' 22" N (36.9728)
- East Longitude: 82° 25' 0" W (-82.4167)
- West Longitude: 97° 14' 0" W (-97.2333)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.