Usage:
Surrett Canyon Formation of White Knob Group (ID,MT)
Surrett Canyon Formation (ID*)
Geologic age:
Mississippian, Late*
Chesterian*
Namurian*
Type section, locality, area and/or origin of name:
Type section: East Canyon, east flank of Lemhi Range, Butte Co., ID. Named from Surrett Canyon, on east flank of Lemhi Range (Huh, 1967).
Reference section: from NW/4 NW/4 to SE/4 SE/4 sec. 25, T. 9 N., R. 26 E., Butte Co., ID (Mamet and others, 1971).
AAPG geologic province:
Idaho Mountains province*
Snake River basin*
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 ([ ]).