Usage:
Nash Formation (WY)
(†Nash Formation not used by the USGS. Replaced with Nash Fork Formation. See Nash Fork.)
Geologic age:
Proterozoic
Type section, locality, area and/or origin of name:
Not designated. Section measured on west branch of Nash Fork, Albany Co., WY (Blackwelder, 1926).
AAPG geologic province:
Northern Rocky Mountain region
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 ([ ]).