|Geologic age||Middle Devonian|
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|Comments||unit description from USGS Geologic Names lexicon (ref. WI023): Consists of a series of thick-bedded magnesian buffish granular limestones underlying the Huron group and overlying the Corniferous group in Lower Peninsula of MI.|
Mudrey, M.G., Jr., Brown, B.A., and Greenberg, J.K., 1982, Bedrock Geologic Map of Wisconsin: University of Wisconsin-Extension, Geological and Natural History Survey, scale 1:1,000,000.
USGS Geologic Names lexicon found at: http://ngmdb.usgs.gov/Geolex/
|Counties||Milwaukee - Ozaukee - Sheboygan|