Grand Canal, China (Google Maps ⧉, OpenStreetMap ⧉)

"the same change has destroyed the Grand Canal as a navigable channel for many miles south of Lin-t’sing chau."

"The Emperor hath caused a water‐communication to be made from this city to Cambaluc in the shape of a wide and deep channel dug between stream and stream, forming as it were a great river on which large vessels can ply."

"Book II.  Part III. … Li T’an—Sinjumatu—Great Canal—Caiju—Lin Ngan"