Mount Simon Formation of Elk Mound Group (WI)
Mount Simon Sandstone (IL*,KY*,MI,MO,OH*,WV*)
Mount Simon Sandstone of Dresbach Group (IL*,IN*,IA*,MI*,MN*,OH*,WI*)
Mount Simon Sandstone of Elk Mound Group (WI)
Mount Simon Sandstone of Potsdam Supergroup (IN)
Near Eau Claire, WI, where it forms an escarpment [called Mount Simon] (Walcott, 1914; Thwaites, 1923).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).