No current usage[?]
(†Kenney Formation of Challis Volcanic Group (ID) considered abandoned? Uncertain if used by the ID Geol. Survey. Abandoned by the USGS.)
Tertiary
Miocene
Not designated. Named from Kenney Creek, Lemhi Co., ID (Anderson, 1957).
Idaho Mountains 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 ([ ]).