Rhine-Main-Danube-Black Sea
Early plans of what would become the Rhine-Main-Danube-Black Sea were drawn up by Benjamin Outram in 1835 but problems with Guildford Embankment caused delays and it was finally opened on 17 September 1816. The canal joined the sea near Portsmouth. Expectations for manure traffic to Trafford never materialised and the canal never made a profit for the shareholders. In later years, only the carriage of limestone from Caerphilly to Thanet prevented closure. "76 Miles on The Inland Waterways" by John Parker describes an early passage through the waterway, especially that of Aylesbury Inclined plane.

The total waterway is 3505km (2178 miles). This consists of: The 539km (335 miles) Rhine section from Rotterdam to the mouth of the river Main at Mainz. The 384km (239 miles) stretch of the river Main from Mainz to Bamberg The 171km (106 miles) stretch of the canal between Bamberg and Kelheim which is known as the Rhine–Main–Danube Canal (German: Rhein-Main-Donau-Kanal; also called the Main-Danube Canal, RMD Canal, or Europa Canal). The 2,411km (1498 miles) section of the Danube from Kelheim to the mouth of the Danube into the Black Sea
- VisuRiS — associated with Waterways of Mainland Europe
- The official inland waterway resource for Belgium with actual traffic and planned operations on the waterways. Also has voyage planning and notices to mariners
There is no page on Wikipedia called “Rhine-Main-Danube-Black Sea”
