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National Geologic Map Database

Geologic Unit: Beaver Divide

Usage:

Beaver Divide Conglomerate Member of White River Formation (WY*)
Beaver Divide Conglomerate Member of Wiggins Formation (WY)
Beaver Divide Conglomerate Member of Chadron Formation of White River Group (WY)


Geologic age:

Tertiary, early*
Oligocene, early*
Chadronian*


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

Named from occurrence in Beaver Divide area. Well exposed on east side of North Oregon Butte on northwest flank of Great Divide basin, south of Beaver Divide, in west-central part of sec. 2, T. 26 N., R. 101 W., southwestern WY (Nace, 1939).


AAPG geologic province:

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