Ridgeley Member of Old Port Formation (PA*)
Ridgeley Member of Oriskany Sandstone (MD*,VA,WV)
Ridgeley Sandstone of Oriskany Group (MD*,NJ,PA*,VA*,WV*)
Ridgeley Sandstone Member of Old Port Formation (PA*)
Ridgeley Sandstone Member of Oriskany Formation (MD,PA)
Named from town of Ridgeley, Mineral Co., northeast WV (Swartz and others, 1913).
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 ([ ]).