Oak Grove Formation of Alum Bluff Group (FL*)
Oak Grove Sand of Alum Bluff Group (FL)
Oak Grove Sand Member of Shoal River Formation (FL*)
Tertiary*
Miocene, middle*
Barstovian
Bed and bank of Yellow River, 400 ft below bridge at Oak Grove in secs. 16 or 17, T. 5 N., R. 23 W., Okaloosa Co., FL (Cooke, 1945).
South Georgia sedimentary 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 ([ ]).