From Lagrasse the road rolls out through the Corbières-Fenouillèdes nature reserve, on toward the castle at Tour and the Château de Roquecourbe-Minervois. The Aude river joins the route before you reach the Narbonnaise en Méditerranée nature reserve and the Fontfroide forest. All 73.0 km are paved, with 498 m of climbing along the way, and the loop brings you back to Lagrasse.
