Milwaukee Formation (WI*)
Middle Devonian*
Type locality: along Milwaukee River in Estabrook and Lincoln Parks, Milwaukee Co., southeastern WI; includes Milwaukee cement quarries (Raasch, 1935).
Named from exposures near Milwaukee, southeastern WI (Alden, 1906).
Wisconsin arch*
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 ([ ]).