No current usage.
(†Kowak clay (informal) (AK) considered obsolete.)
Quaternary
Pleistocene
Not stated. Occurs on left bank of Kowak River, at about Long. 158 deg. W., northern AK (Dall and Harris, 1892).
Alaska Northern region
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 ([ ]).