Las Feveras Formation (NM*)
Tertiary*
Pliocene, late*
Quaternary*
Pleistocene, early*
Not designated. Named from Las Feveras Canyon [spelled Los Febres Canyon], Mora Co., NM (Bachman, 1953).
Las Vegas-Raton 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 ([ ]).