Allegheny Furnace. Opposite are remains of furnace built in 1811, the second in this section. It was operated until 1884. The stone store building built in 1837 is the oldest in the city of Altoona. Pa. 36 (Union Ave.) S of 31st St., Altoona, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap
