USGS Visual Identifier
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Geologic Unit: Linden Hall

Linden Hall Formation (PA*)
Linden Hall Limestone of Black River Group (PA*)

Ordovician, Middle*
Ordovician, Late
Geologic Province:
Appalachian basin*

Areal Extent:

Type Locality:
Type section: Oak Hill quarry, 2 mi east of Oak Hall, PA.

Stover, Oak Hall, and Centre Hall Members (PA)

Unit Name History:
Named Linden Hall Formation (Rones, 1969).
Revised (Faill and others, 1977).
Not used, replaced with Benner Formation (Berg and others, 1980).
Revised; Overview (Faill and others, 1989).
Revised (Ryder and others, 1992).

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