There are two rivers in Switzerland which have three letters in their names. The river Aar and the river Inn
the river exe
Aar
axe
Rio
the longest river in Switzerland is the Rhine 375km 36,494km2
moskva you just replace the last three letters of moscow
I think the longest name has 32 letters which is Bernadette Maria Rosena McLaughclin.
The River Nile has only four letters.
River Trent.
The three letter name of the river that leads to the English Channel is the River Exe. It flows through Devon and Somerset counties from Lyme Bay.
The Kalamazoo River.
The Po is a river in Italy
No
The Rodil is a Spanish river with five letters.