Iron King Volcanics of Big Bug Group (AZ*)
Paleoproterozoic*
Not designated. Named from exposures in Iron King Gulch, south of Humboldt, Yavapai Co., AZ (Anderson and Creasey, 1958).
Southwestern Basin-and-Range 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 ([ ]).