Mary Lyon

Historical marker location:

3805 West Chester Pike, Newtown Township, Pennsylvania

( Marker can be reached from Charles Ellis Lane, 0.2 miles north of West Chester Pike (Pennsylvania Route 3), on the left when traveling north.)

1797 - 1849.

Pennsylvania is home to the longest stone arch bridge in the world, the Rockville Bridge, which spans the Susquehanna River near Harrisburg.