National Geologic Map Database
General Information
- Title: Thickness and lithology of Upper Devonian and Carboniferous rocks in Michigan
- Author(s): Cohee, G.V., Macha, Carol, and Holk, Margery
- Publishing Organization: U.S. Geological Survey
- Series and Number: Oil and Gas Investigations Chart OC-41
- Publication Date: 1951
- Map Scale: 1:495,000
- Cross Section: None
- North Latitude: 45° 55' 0" N (45.9167)
- South Latitude: 41° 47' 30" N (41.7917)
- East Longitude: 82° 30' 0" W (-82.5000)
- West Longitude: 87° 0' 0" W (-87.0000)
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