Usage:
Berg Creek Amphibolite of Riggins Group (ID*-recognized locally in "type area")
Geologic age:
Paleozoic or Mesozoic*
Type section, locality, area and/or origin of name:
Type section: exposure in north wall of Salmon River Canyon, in T. 24 N., R. 1 and 2 E., Idaho Co., ID (Hamilton, 1963).
AAPG geologic province:
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 ([ ]).