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National Geologic Map Database

Geologic Unit: Leigh

Usage:

Leigh Formation (WY)
Leigh Member of Bighorn Dolomite (MT?,WY*)


Geologic age:

Late Ordovician*


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

Not designated (Blackwelder, 1918). "Type or...reference section" in Badger-North Leigh Canyon divide, west side Teton Range, Teton Co., WY (Reeves, 1964).


AAPG geologic province:

Yellowstone province*
Green River basin*
Wind 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 ([ ]).