USGS Visual Identifier
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Geologic Unit: Nealmont

Nealmont Limestone (PA*,VA*,WV*,NY*)
Nealmont Limestone of Trenton Group (VA*,WV*)
Nealmont Formation of Trenton Group (PA*)

Ordovician, Middle*

Geologic Province:
Appalachian basin*

Areal Extent:

Type Locality:
Type section: At Union Furnace, Huntingdon Co., PA. Named from village of Nealmont, Blair Co., PA, 2 mi east of Tyrone (Kay , 1941).

Unit Name History:
Named (Kay, 1941). Age modified; Overview (Ryder, 1992a). Revised; Areal limits; Age modified (Ryder, 1992b). Age modified (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