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National Geologic Map Database

Geologic Unit: Big Hole

Usage:

Big Hole Basalt (ID*)
Big Hole Basalt of Snake River Group (ID*)


Geologic age:

late Pleistocene*


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

Type locality: Big Hole, a basalt-rimmed inlet on west side of the American Falls Reservoir, about 3 mi east of Aberdeen, [in T. 5 S., R. 32 E.], American Falls quadrangle, Bingham Co., southeastern ID (Carr and Trimble, 1963).


AAPG geologic province:

Snake 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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).