No current usage?
(†Bald Mountain Basalt (CA) considered abandoned? Uncertain if used by the CA Geol. Survey. Not used by the USGS.)
Pliocene(?)
Type locality not stated. Mapped on and in vicinity of Bald Mountain, Mono Co., southern CA (Chesterman, 1956).
Great Basin 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 ([ ]).