Ardèche is a tributary of the river that has a mouth at what body of water?
Ardèche (river) The Ardèche (Occitan: "Ardecha" ) is a 125 km long river in south-central France, a right-bank tributary of the River Rhône. Its source is in the Massif Central, near the village of Astet. It flows into the Rhône near Pont-Saint-Esprit, north-west of Orange. The river gives its name to the French department of Ardèche.
Ibie The Ibie is a 32.9 km long river in the Ardèche "département", southeastern France. Its source is at Saint-Jean-le-Centenier, 2 km south of the village. It flows generally south-southwest, through the northern part of the Côtes du Vivarais AOC. It is a left tributary of the Ardèche into which it flows at Vallon-Pont-d'Arc, 1.8 km southeast of the village.