Durst Group (CO,UT)
(alphabetical): Hells Canyon Formation (UT), Weber Formation (UT).
Pennsylvanian
Not designated. Named from Durst Mountain, a peak 7 mi north of Morgan, Morgan Co., UT (Sadlick, 1957).
Wasatch uplift
Uinta uplift
Uinta basin
Green 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 ([ ]).