Class actions are lawsuits brought by a representative member(s) of a large group of persons on behalf of all the members of the group who have suffered identical or similar harm for which the same defendant may be liable -- such as a defective product class action against a manufacturer or an employment discrimination class action against a large company.
Piedra (formerly, Del Piedra and Delpiedra) is an unincorporated community in Fresno County, California. It is located on the south bank of the Kings River 23 miles (37 km) east of Fresno, at an elevation of 538 feet (164 m). In 1911, the Atchison, Topeka and Santa Fe Railroad built a branch line to a nearby quarry and bestowed the name ("Piedra" is Spanish for "rock" or "stone"). The Delpiedra post office operated from 1920 to 1943. The Piedra post office was established in 1949.