National Geologic Map Database
Product Description Page
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Title: Wedron and Mason Groups: Lithostratigraphic Reclassification of Deposits of the Wisconsin Episode, Lake Michigan Lobe Area
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Author(s): Hansel, A.K., and Johnson, W.H.
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Publishing Organization: Illinois State Geological Survey
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Series and Number: Bulletin 104 [116 p.]
- Publication Date: 1996
- Cross Section: Yes
- North Latitude: 42° 30' 30" N (42.5083)
- South Latitude: 36° 58' 13" N (36.9703)
- East Longitude: 87° 29' 47" W (-87.4964)
- West Longitude: 91° 30' 47" W (-91.5131)
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Ashmore,
Batavia,
Beverly,
Dolton,
Equality,
Henry,
Hudson,
Mackinaw,
Markham,
Mason,
Meadow,
Morton,
Parkland,
Peddicord,
Peoria,
Ravinia,
Robein,
Roxana,
Wasco,
Wisconsin
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.