Otherwise, the river disappears near Les Vieilles Vaures (commune of Agris) about 5 km before reaching the Tardoire. All the water drains away in several sinkholes in the karst only to reappear near Angoulême as springs of the river Touvre, a tributary of the Charente.
Otherwise, the river's course changes near Les Vieilles Vaures (commune of Agris) about 5 km before it meets the Tardoire. The water then disappears into several sinkholes in the karst and reappears as springs near Angoulême, forming part of the Touvre river, a tributary of the Charente.