Potosi Dolomite

Potosi Formation Stratigraphic range: Cambrian
Type	Formation
Underlies	Eminence Dolomite
Overlies	Derby-Doerun Dolomite
Location
Region	St. Francois County, Missouri
Country	United States

The Potosi Formation is a geologic formation in Missouri. It preserves fossils dating back to the Cambrian period.