Usage:
Elkhead Limestone (ID*)
Geologic age:
Middle Cambrian*
Type section, locality, area and/or origin of name:
Exposures both east and west of Midnight Creek, in secs 7, 8, 17, and 18, T. 8 S., R. 34 E., Arbon quadrangle, Power Co., ID. Named from Elkhead Ranch on Midnight Creek (Trimble and Carr, 1976).
AAPG geologic province:
Snake River basin*
Idaho Mountains 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 ([ ]).