No current usage.
(†Indian Hills Volcanics (AZ) is synonym of Green Gulch Volcanics. See Green Gulch.)
Precambrian
Not designated. Named from Indian Hills, along the western front of the Black Hills, 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 ([ ]).