Usage:
No current usage.
(†Cedar Formation (CA*) abandoned.)
Geologic age:
Late Triassic*
Type section, locality, area and/or origin of name:
Named from exposure on Cedar Creek along toll road between Redding and Round Mountain, [in T. 34 N., R. 1 W., southeast corner of Montgomery 15-min quadrangle, Shasta Co.], Lassen Peak region, northern CA (Diller, 1895).
AAPG geologic province:
Klamath Mountains province*
Sierra Nevada 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 ([ ]).