The Rhine divides at Lobith on the Dutch-German border. Two branches continue the route westwards. The southern section is made up of a river which changes its name from Waal to Merwede, Noord and New Meuse. Most of the water in the Rhine follows this route. That means that this section determines the length of the Rhine.
Many of the river branches in this section are connected to the Meuse, which is why it is also called the Rhine-Meuse delta.
The northern branch is first called the Lower Rhine and later on the Lek. This branch splits off from the southern branch where it is called the Noord. The (Gelderland) IJssel leaves the Lower Rhine at Westervoort and eventually flows into Lake IJssel.
International Commission for the Protection of the Rhine
P.O. Box 200253 D - 56002 Koblenz
Kaiserin-Augusta-Anlagen 15 D - 56068 Koblenz Germany