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National Geologic Map Database

Geologic Unit: Mule Spring

Usage:

Mule Spring Limestone (CA*,NV*)
Mule Spring Formation (CA,NV)


Geologic age:

Early Cambrian*


Type section, locality, area and/or origin of name:

Type section: along east end of Walcott's (1908, Smithsonian Miscellaneous Colln., v. 53, no. 5) Waucoba Spring section, east of Waucoba Springs, on Saline Valley road, east of Inyo Range, Inyo Co., central CA. Named from exposures at Mule Spring on west flank of Inyo Mountains, Waucoba Mountain quadrangle, CA (Nelson, 1962). Best section on ridge, in sec. 27, T. 11 S., R. 37 E., but is faulted (Ross, 1967).


AAPG geologic province:

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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).