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National Geologic Map Database

Geologic Unit: Bear River

Usage:

Bear River Formation (ID*,UT*,WY*)


Geologic age:

Early Cretaceous*


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

Notable exposures at Bear River City, a construction camp on the Union Pacific RR, in T. 14 N., R. 119 W., Uinta Co., southern WY (Hayden, 1869).
Detailed section in RR cuts about 1 mi west of Bear River (see Hayden, 1870).


AAPG geologic province:

Green River basin*
Snake River basin*
Wasatch uplift*
Central Western Overthrust*


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 ([ ]).