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National Geologic Map Database

Geologic Unit: Littlehorn

Usage:

No current usage.
(†Littlehorn Limestone (WY-recognized locally in Bighorn Mountains) is same as Madison Limestone. See Madison.)


Geologic age:

Mississippian


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

Named from fine exposures in Little Horn Canyon, on east side of Bighorn Mountains, [Sheridan Co.], northern WY.


AAPG geologic province:

Powder 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 ([ ]).