Historical Marker
Poors Brigade
Historical marker location:
Outer Line Road, Tredyffrin Township, Pennsylvania
( Marker is on Joseph Plumb Martin Trail, on the right when traveling west.)
Continental Army. Valley Forge December 19 1777 June 18 1778.
Pennsylvania was home to the first commercially drilled oil well in the world, which was drilled in 1859 near Titusville.