https://en.wikipedia.org/wiki/Rhine–Meuse–Scheldt_delta
The Rhine–Meuse–Scheldt delta is a river delta in the Netherlands formed by the confluence of the Rhine, the Meuse (Dutch: Maas) and the Scheldt rivers.In some cases, the Scheldt delta is considered a separate delta to the Rhine–Meuse delta.The result is a multitude of islands, branches and branch names that may at first sight look bewildering, especially as a waterway …