Usage:
Winterhaven Formation (AZ*,CA*)
Geologic age:
Jurassic(?)*
Type section, locality, area and/or origin of name:
Type section: forms northern limb of anticline just west of Little Picacho Wash, southwest corner Picacho SW 7.5-min quadrangle, CA. Origin of name not stated by authors, but probably named from Winterhaven, a town on west side of Colorado River, Imperial Co., CA (Haxel and others, 1985).
AAPG geologic province:
Salton basin*
Basin-and-Range province*
Mojave 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 ([ ]).