Beaver Falls, city (1990 pop. 10,687), Beaver co., W Pa., on falls of the Beaver River near its junction with the Ohio; settled c.1793, inc. 1868. A steel center in an area of coal mines, natural gas deposits, and clay pits, it is known for its cold-drawn steel. The plates for U.S. currency are manufactured there. The city was founded on a Native American trail that later became a pioneer road. Geneva College is there.