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National Geologic Map Database

Geologic Unit: Yahoo

Usage:

Yahoo Clay of Snake River Group (ID*)


Geologic age:

Quaternary*
Pleistocene*


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

Exposures approx. 4 mi south-southwest of Hagerman, ID, near mouth of Yahoo Creek, where it joins with Snake River, along bdry of Hagerman Fossil Beds National Monument, in secs. 3, 4, and 5, T. 8 S., R. 13 E., [Hagerman 7.5-min quadrangle], Twin Falls Co., ID. Named from Yahoo Creek (Malde, 1982).
Eleven reference localities designated: (1) 2,675 to 2,800 ft elevation in right abutment of dam; (2) in SW corner sec. 7, T. 6 S., R. 13 E., Bliss quadrangle; (3) in SE corner sec. 7, T. 6 S., R. 13 E., Bliss quadrangle; (4) in NW corner sec. 8, T. 6 S., R. 13 E., Bliss quadrangle; (5) in SW corner sec. 20, T. 6 S., R. 13 E., Bliss quadrangle; (6) in SW corner sec. 27, T. 6 S., R. 13 E., Hagerman quadrangle; (7) in NW corner sec. 19, T. 7 S., R. 14 E., Tuttle quadrangle; (8) in NW corner sec. 2, T. 7 S., R. 13 E., Hagerman quadrangle, (9) in NW corner sec. 6, T. 8 S., R. 14 E., Tuttle quadrangle; (10) Thousand Springs to Melon Valley; and (11) Canyon wall, west and southwest of Hagerman (Malde, 1982).


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 ([ ]).