Ourthe

The Ourthe (Walloon: Aiwe d' Oûte) is a 165-kilometre (103 mi) long river in the Ardennes in Wallonia (Belgium). It is a right tributary to the river Meuse. The Ourthe is formed at the confluence of the Ourthe Occidentale (Western Ourthe) and the Ourthe Orientale (Eastern Ourthe), west of Houffalize.