Valles Mines, Missouri
Valles Mines is an unincorporated community in southern Jefferson County, Missouri, United States. It is located about seven miles south of De Soto and is less than a mile from U.S. Route 67. It is in the St. Louis Metropolitan Area.
A post office called Valles Mines was established in 1826. The community is named after François Vallé, who established lead mines there in the 18th century.
Coordinates: 38°02′31″N 90°29′59″W / 38.04194°N 90.49972°W
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