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National Geologic Map Database

Geologic Unit: Cottonwood Wash

Usage:

Cottonwood Wash Tuff of Needles Range Group (NV*, UT*)
Cottonwood Wash Tuff Member of Needles Range Formation (NV*,UT)


Geologic age:

Oligocene*


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

Cottonwood Wash, on east side of sec. 4, T. 26 S., R. 18 W., Beaver Co., UT (Best and others, 1973).


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).