Slate Industry. Robert M. Jones of Wales, who came here in 1848 as an immigrant, began the slate quarrying industry. The region became a major world center for slate. From here came slate for roofs and old-time school slates and pencils. Market St. (PA 512) near 1st St., Bangor, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap
