Douglas Creek Member of Green River Formation (CO*,UT*)
(alphabetical): Kimball Mountain Bed (CO*), Long Point Bed (CO*,UT*).
Tertiary*
Eocene*
Not designated. Named from exposure at head of Douglas Creek, Rio Blanco Co., CO (Bradley, 1931).
Piceance basin*
Uinta 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 ([ ]).