Pontcysyllte Aqueduct is another engineering marvel from the 18th century and was used for transportation with horse drawn barges. Now the canals are used by tourists boats and old horse paths on the side make for good walking tracks.
The canal that is on the aqueduct originates about 9 kms away where the water is diverted out from the River Dee. At this location the river and the canal are at the same elevation. At the location of the aqueduct, the canal is 38 metres above the river Dee, which runs directly underneath.