What is "lizonne"

The Lizonne , also called the Nizonne, is a long river in the Dordogne and Charente departments in southwestern France. Its source is near Morelière, a hamlet in Sceau-Saint-Angel. It flows generally southwest. It is a right tributary of the Dronne, into which it flows between Saint-Séverin and Allemans.

Part of its course forms part of the border between the Dordogne and Charente departments.