Altoona

city in Blair county, Pa.; on the Pennsylvania railroad, at the 1, base of the Alleghany mountains; 117 miles E. of Pittsburg. It is a mining, manufacturing, peers and. farming trade centcr for entral Pennsylvania; and, besides extensive machine shops of the Pennsylvania railroad, has large car works, rolling and planing mills, and other industrial plants, with annual product valued at over $15,000,000. Pop.