Pg. 22. Wills granite. Mentioned in road log from Roselle to Mine LaMotte. In contact with Stouts Creek rhyolite. Age is Precambrian.
Occurs in St. Francois Mountain area. Wills Branch flows from St. Francois Co. into Madison Co., southeastern MO.
Source: US geologic names lexicon (USGS Bull. 1350, p. 833).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
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