Monongahela, PA, United States
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.
Listen to the audio guide for Blue plaque № 29791 Free on WIP — starts by itself when you arrive, even with the screen off