Usage:
Sage Creek Formation (MT*)
Geologic age:
early Tertiary (Eocene)*
Type section, locality, area and/or origin of name:
Type locality: north of Sage Creek, 8 mi northwest of Lima (instead of 7 mi northeast), [in sec. 29, T. 12 S., R. 8 W.], Beaverhead Co., southwestern MT (Wood, 1934).
AAPG geologic province:
Montana folded belt
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 ([ ]).