USGS Visual Identifier
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Geologic Unit: Bellevue

Bellevue Limestone (IN,OH*,KY*)
Bellevue Limestone Member of McMillan Formation (OH*)
Bellevue Tongue of Grant Lake Limestone (KY*,OH,IN)
Bellevue Member of Grant Lake Limestone (OH,KY)
Bellevue Member of Grant Lake Formation (OH)

Ordovician, Late*
Geologic Province:
Cincinnati arch*

Areal Extent:

Type Locality:
Type section: strata exposed near top of bluff at bend in Clifton Avenue just under the old Bellevue House, a onetime landmark now disappeared, Cincinnati, OH (Nickles, 1902).

Unit Name History:
[Please note: The Bellevue has been extensively studied. Only a few of the references from the GNC index card files are listed here. Feel free to contact us if you would like a complete list of the references for this unit.]
Named (Nickles, 1902).
Assigned as member of McMillan Formation (Hyde, 1959).
Redefined as lithologic unit and called Bellevue Limestone; Principal reference section (Ford, 1967).
Reassigned as Bellevue Tongue of Grant Lake Limestone in KY (Swadley, 1969).
Revised to member of Grant Lake Limestone (Schumacher and others, 1991).
Overview (Wahlman, 1992; Jennette and Pryor, 1993).
Age modified (Frey, 1995).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013