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National Geologic Map Database

Geologic Unit: Fort Hall

Usage:

Fort Hall Member of Thaynes Formation (ID*)


Geologic age:

Early Triassic*


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

Named from old Fort Hall in valley of Lincoln Creek, Bingham Co., southeastern ID (Mansfield, 1916; see also Mansfield, 1920, USGS Bull. 713, pl. 3 geol. map).
[Fort Hall No. 2 Historic Site at confluence of Cold and Lincoln Creeks, in NE/4 sec. 24, T. 3 S., R. 36 E., Yandell Springs 15-min quadrangle, Bingham Co., southeastern ID.]


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 ([ ]).