A mass tort is a civil action involving numerous plaintiffs against one or a few corporate defendants. The tort may involve, for example, personal injuries suffered by numerous plaintiffs as a result of a defective product, or a mass disaster in which there were many injured persons, such as an airplane crash, or exposure of a large group of people to toxic chemicals or pharmaceuticals.
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.