What is "couiza"

Couiza is a commune in the Aude department in southern France.

Couiza is located at the foothills of the Pyrenees, on the road between Limoux, going towards Carcassonne and Quillan, going towards Perpignan. Couiza, at the top of the Haute Valley of the Aude, is at the foot of the hill leading to Rennes-le-Château and is on the Aude River.