· Elbe River in Europe
Exe
Rio
Mortagne in northeastern France
For A there are heaps! Such as the Aan River, Alexander River or th Aropaoanui River. For the letter G you could have the Gary River, the Gelt River or the Greenstone River.
The River Nile has only four letters.
It is the ICA River.
The Darling River, Lachlan River, Warrego River
Audi
There are two rivers in Switzerland which have three letters in their names. The river Aar and the river Inn
The Rodil is a Spanish river with five letters.
* Ord River * Bow River * Hay River