Bolivar Heights Member of Tomstown Formation (MD*,PA,VA*,WV*)
Early Cambrian
Type section: Along CSX Railroad tracks at north end of Bolivar Heights, 1.5 miles west of the confluence of Potomac and Shenandoah Rivers at Harpers Ferry, Jefferson Co., WV (Brezinski, 1992).
Appalachian basin*
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 ([ ]).