CARNEGIE, a borough of Allegheny county, Pennsylvania, U.S.A., 6m. S.W. of Pittsburgh, in the beautiful valley of Char tiers creek. It is served by the Pennsylvania, the Pittsburgh, Chartiers and Youghiogheny and the Pittsburgh and West Vir ginia railways. The population in 1920 was 11,516; and it was in 1930. The principal industries are coal-mining and the manufacture of steel and steel products, lead, glass, structural iron and enamelled ware. The factory output in 1925 was valued at $3,279,952. The borough was formed in 1894 by uniting Char tiers and Mansfield. A few miles south is Bower Hill, the chief scene of violence in the "whisky rebellion" of 1794.