Monongahela. Oldest settlement in the valley and transportation center since the days of Devore's Ferry, chartered 1775. Laid out in 1796 as Williamsport. A city since 1873. Here thousands of pioneers began the river journey to the West. Pa. 136 at Chess St., Monongahela, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap
