Kinnikinic Quartzite (ID*, and MT-recognized locally in Beaverhead Range)
Middle Ordovician*
Kinnikinic Creek, in T. 11 N., R. 17 and 18 E., Custer Co., ID (Ross, 1934).
Reference section: along Salmon River, south edge of secs. 22, 23, and 24, T. 11 N., R. 17 E., Highway 93, 2 mi west of Clayton, Custer Co., ID (Hobbs and others, 1968).
Reference section: in Arco Hills, 3.5 mi east-northeast of Arco, in SW/4 SW/4 sec. 27, T. 4 N., R. 27 E., Butte Co., ID (Oakes and James, 1980).
Idaho Mountains province*
Snake River basin*
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 ([ ]).