A borough of Westmoreland county, Pennsylvania, U.S.A., on the Allegheny river, 18 m. N.E. of Pittsburg. Pop. (1900) 4665 (1042 foreign-born and 86 negroes); (1910) 7707. It is served by the Pennsylvania railroad and by electric railways to neighbouring towns. There are a variety of manufactures. The borough was founded in 1891 and was incorporated in the following year.