Usage:
High Bridge Group (KY*)
Subunits:
(alphabetical) --all in KY*: Camp Nelson Limestone, Oregon Formation or Oregon Limestone or Oregon Dolomite, Tyrone Limestone.
Geologic age:
Late Ordovician (late Whiterockian to Mohawkian; late Chazyan to Kirkfieldian)*
Type section, locality, area and/or origin of name:
Vicinity of High Bridge, in the Kentucky River gorge, southern Jessamine Co., KY (Campbell, 1898).
AAPG geologic province:
Cincinnati arch*
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 ([ ]).