No current usage.
(†Camp Creek Group (MT) or †Camp Creek series [informal] (MT) replaced with Missoula Group. See Missoula.)
Precambrian
Named from exposures on Camp Creek, Mission Range, Lake and Missoula Cos., central western MT (Walcott, 1906).
Northern Rocky Mountain region
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 ([ ]).