National Geologic Map Database
Product Description Page
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Title: Map of part of Iron County, Michigan, showing part of area of aeromagnetic survey and magnetic trend lines
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Author(s): Barrett, L.P., Pardee, F.G., Osgood, W., and Hawkes, H.E.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Geophysical Investigations Preliminary Map GP-3 [pl. 1]
- Publication Date: 1946
- Map Scale: 1:144,000
- Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.