Keyes Lake Quartzite Member of Michigamme Slate of Baraga Group of Marquette Range Supergroup (WI-local)
Paleoproterozoic
Not designated. Exposed west and southwest of Florence, in vicinity of Pine River Reservoir, Florence Co., WI (Nilsen, 1965).
Lake Superior region
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).