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Geologic Unit: Rose Run

Rose Run Sandstone (OH*,KY*,PA,NY,WV)
Rose Run Formation of Knox Supergroup (KY,OH)
Rose Run Sandstone of Beekmantown Group (OH)
Rose Run Sandstone of Knox Group (KY*,WV)
Rose Run Sandstone Member of Knox Dolomite (OH*)

Cambrian, Late*
Ordovician, Early*

Geologic Province:
Appalachian basin*

Areal Extent:

Type Locality:
Type section (subsurface): Well no. 11 drilled by Judy and Young on property of Rose Run Iron Company, Bath Co., eastern KY. Property is drained by Rose Run Creek (McGuire and Howell, 1963).

Unit Name History:
[Please note: only the McGuire and Howell (1963), Ryder (1992a; 1992b), de Witt (1993), and Ryder and others (1997) references include synopses here. The remaining references have yet to be added from the GNC index card files. Until then, feel free to contact us if you would like complete bibliographic citations.]
First used (Freeman, 1949).
Name proposed for member of Chepultepec dolomite (McGuire and Howell, 1963).
Extended into OH (Janssens, 1970).
Extended into PA and NY (Weaver, 1972).
Assigned to Knox Dolomite (Janssens, 1973).
Assigned to Knox Supergroup (Cable and Beardsley, 1984).
Extended into WV (Sweeney, 1986).
Assigned to Beekmantown Group in subsurface of eastern OH (Coogan and Maki, 1988).
Revised; Age modified; Areal limits (Ryder, 1992a).
Revised (Ryder, 1992b).
Age modified (de Witt, 1993).
Assigned to Knox Group in KY (Ryder and others, 1997).

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
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Last modified: 15-Jan-2013