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National Geologic Map Database

Geologic Unit: Walker Mountain

Usage:

Walker Mountain Sandstone Member of Bays Formation (VA)
Walker Mountain Sandstone Member of Bays Formation of Chickamauga Group (TN)
Walker Mountain Sandstone Member of Eggleston Formation (VA)
Walker Mountain Sandstone Member of Moccasin Formation (VA)


Geologic age:

Late Ordovician (Mohawkian; Turinian to Chatfieldian)


Type section, locality, area and/or origin of name:

Type section: on VA State Road 750 along Keywood Branch, [btw. Litz and Keywood], about 0.5 mi north of the former community of Seven Springs, [Glade Spring 7.5-min quadrangle], Washington Co., southwestern VA (Cooper, 1956; Haynes and Goggin, 1993).
Named from exposures at southwestern end of Walker Mountain, Washington Co., southwestern VA (Butts and Edmundson, 1943).


AAPG geologic province:

Appalachian basin


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

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

Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).