Usage:
Hay Ranch Formation (NV*)
Geologic age:
Quaternary
Tertiary
Miocene* to Pleistocene*
Type section, locality, area and/or origin of name:
Not stated. Covers most of floor of Pine Valley. Named from Hay Ranch, in vicinity of Carlin, in NW/4 T. 29 N., R. 52 E. [McCormack Springs 7.5-min quadrangle], Eureka Co., NV (Regnier, 1960).
AAPG geologic province:
Great Basin 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 ([ ]).