The Delaware and Hudson Canal was constructed to transport anthracite coal from mines in Carbondale, Pennsylvania to the Hudson River. Coal was brought from Carbondale to Honesdale, Pennsylvania by a gravity railroad and then loaded onto canal boats. The canal crossed the Delaware River at Lackawaxen, Pennsylvania. The canal ended at Rondout, New York near the city of Kingston. From there coal was transferred to steamship for delivery.

The canal was 108 miles long with 108 locks. The canal is noteworthy for four aqueducts that were built by John A. Roebling. Of these the Delaware Aqueduct lies within the Upper Delaware Scenic and Recreational River and has been restored by the National Park Service.

Portions of the canal were designated a National Historic Landmark in 1968.

http://www.nps.gov/upde/historyculture/dhcanal.htm