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National Geologic Map Database

Geologic Unit: Baird

Usage:

Baird Shale (CA*)
Baird Formation (CA*)


Subunits:

Hirz Mountain Limestone Member (CA).


Geologic age:

Late Mississippian to Early Pennsylvanian; possibly extends into Permian*


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

Notable exposures on west side of [McCloud River] just above Baird Post Office, [Shasta Co., CA] (Fairbanks, 1894).
Named from exposures near now submerged Baird fish hatchery on McCloud River near confluence with Pit River [Lat. 40 deg. 47 min. N., Long. 122 deg. 19 min. W., Lamoine 15-min quadrangle], Shasta Co., CA (Albers and Robertson, 1961).


AAPG geologic province:

Klamath Mountains 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 ([ ]).