Clifford Creek Granite (MT*)
Late Cretaceous and Paleocene*
Upper part of Clifford Creek, northwest of Black Lion Mountain, Stine Mountain and Vipond Park quadrangles, Beaverhead Co., MT (Zen, 1988).
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 ([ ]).