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National Geologic Map Database

Geologic Unit: Cow Springs

Usage:

Cow Springs Sandstone (AZ*,NM*)
Cow Springs Sandstone of San Rafael Group (AZ)
Cow Springs Member of Entrada Sandstone of San Rafael Group (AZ*)


Geologic age:

Jurassic, Middle*


Type section, locality, area and/or origin of name:

Type section: 6 mi south of Lat. 36 deg. 30 min., and 1.25 mi west of Long. 110 deg. 45 min. (Harshbarger and others, 1951).
Type locality: a cliff, north face Black Mesa, 4 mi east of Cow Springs, Navajo Co., AZ (Harshbarger and others, 1951).
Named from development near Cow Springs (Harshbarger and others, 1951).


AAPG geologic province:

Black Mesa basin*
San Juan basin*
Plateau sedimentary province*
Basin-and-Range 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).