Old Rag Granite (VA*-local)
Old Rag Granite of Saddleback Mountain Suite (VA-local)
Mesoproterozoic*
Most typical and extensive exposure is Old Rag Mountain, east side of the main range, and east of Oldrag Post Office, Stony Man quadrangle, Madison Co., north-central VA (Furcron, 1934).
Piedmont-Blue Ridge province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).