Usage:
McGowan Creek Formation (ID*)
Geologic age:
Early to Middle Mississippian (Tournaisian to Visean; Kinderhookian to Osagean)*
Type section, locality, area and/or origin of name:
Type section: along ridge crest south of McGowan Creek on west side of Lost River Range, in N/2 sec. 28, and E/2 sec. 29, T. 12 N., R. 21 E. (unsurveyed), [in vicinity of Lat. 44 deg. 20 min. 25 sec. N., Long. 113 deg. 59 min. 27 sec. W.], Doublespring 15-min quadrangle, [Challis National Forest], Custer Co., ID (Sandberg, 1975; additional locality information from USGS GNIS database and ACME Mapper 2.0, accessed on Darwin's 200th birthday).
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 ([ ]).