Usage:
Grandeur Formation of Park City Group (UT*)
Grandeur Member of Park City Formation (ID*,MT*,UT*,WY*)
Grandeur Tongue of Park City Formation (ID*,MT*,UT*,WY*)
Geologic age:
early Permian (late Leonardian)*
Type section, locality, area and/or origin of name:
Type section: about 1 mi southwest of Grandeur Peak, in sec. 36, T. 1 S., R. 1 E., on north side and near mouth of Mill Creek Canyon, Salt Lake Co., UT (McKelvey and others, 1959).
AAPG geologic province:
Idaho Mountains province*
Great Basin province*
Wasatch uplift*
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 ([ ]).