Prehistoric archaeological sites, historic architecture, and historic engineering and industrial sites are all abundant in the Upper Delaware Valley.
Portions of the D & H Canal, including the Delaware Aqueduct, were designated a National Historic Landmark in 1968. The Delaware Aqueduct is also designated a National Civil Engineering Landmark.
Did You Know?
Upper Delaware is the home of the oldest existing wire cable suspension bridge in the nation - the Delaware Aqueduct. Built in 1847 for the Delaware and Hudson Canal, it was designed by and constructed under the supervision of John A. Roebling, future engineer of the Brooklyn Bridge.