USGS Visual Identifier
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Geologic Unit: Dan River

Dan River Group of Newark Supergroup (NC*)

Triassic, Late*
Geologic Province:
Piedmont-Blue Ridge province*
Davie County basin*
Dan River-Danville basin*
Areal Extent:

Type Locality:
Type area: Dan River basin, Stokes and Rockingham Cos., NC. (Thayer, 1970)

Pine Hall Formation*, Cow Branch Formation*, Stoneville Formation*

Unit Name History:
Named (Thayer, 1970). Revised Dan River Group of the Newark Supergroup (Olsen and others, 1982). Extended into Davie County basin (Brown and others, 1985). Age (Robbins, 1982).

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