Daly Creek Member of Sepulcher Formation of Washburn Group of Absaroka Volcanic Supergroup (MT*,WY*)
early Tertiary (Eocene)*
Type area: headwaters of Daly Creek in the northwest corner of Yellowstone National Park, northwestern WY (Smedes and Prostka, 1972).
Montana folded belt*
Yellowstone 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 ([ ]).