USGS Visual Identifier
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Geologic Unit: Provo

Provo Member of Little Cottonwood Formation of Lake Bonneville Group (UT*)
Provo Formation of Lake Bonneville Group (ID*,UT*)

Geologic Province:
Great Basin province*
Wasatch uplift*
Areal Extent:

Type Locality:
Well developed at base of Wasatch Mountains in form of terraces, deltas, spits, bars, beaches, and deeper water deposits. Well developed on western side of Lake Mountain. [From US geologic names lexicon, USGS Bull. 1200]
Reference locality designated in part of the Cottonwood delta that is graded to the Provo shoreline and extends from Alta Airpark to a point about 0.5 mi north of Cottonwood Creek near south edge of Butterville, Salt Lake Co., UT (Morrison, 1965).

Unit Name History:
Name credited to H.J. Bissell (unpub. thesis). First published use (K.C. Bullock, 1951, Utah Geol. and Mineralog. Survey Bull. 41, p. 21-22) [From US geologic names lexicon, USGS Bull. 1200].
Assigned to Little Cottonwood Formation of Lake Bonneville Group as the upper member; Reference; Overview (Morrison, 1965).
Areal limits (Oriel and Platt, 1980).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013