Eshe Porphyry (CO)
Late Cretaceous(?) or Paleocene
Not designated. Named from exposures around Eshe Ranch, in sec. 33, T. 8 S., R. 76 W., Park Co., CO (Stark and others, 1949).
South Park 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 ([ ]).