Usage:
Chamokane Creek Formation (WA*)
Geologic age:
Mesoproterozoic*
Type section, locality, area and/or origin of name:
Type section: Exposures on ridge north of North Fork of Chamokane Creek in sec. 11 and 14, T. 30 N., R. 38 E., Empey Mountain 7.5-min quadrangle, Stevens Co., WA (Miller, 1996a).
AAPG geologic province:
Northern Cascade Range-Okanagan 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 ([ ]).