Usage:
Bozeman Group (MT*)
Subunits:
(alphabetical): --all in MT: Climbing Arrow Formation*, Dunbar Creek Formation*, Milligan Creek Formation*, Renova Formation*, Sixmile Creek Formation*, Sphinx Conglomerate.
Geologic age:
Tertiary (late Eocene to late Miocene; Uintan to Hemphillian NALMA)*
Type section, locality, area and/or origin of name:
Named from exposures in vicinity of Bozeman, Gallatin Co., MT (Iddings and Weed, 1894).
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 ([ ]).