It is located at the southwestern end of the Massif Central at the juncture of the Tarn, Hérault and Aude departments.

The GSSP for the Tournaisian is near the summit of La Serre hill, in the commune of Cabrières, in the Montagne Noire.

The Montagne Noire is an area ideal for relaxing, discovering the region's heritage and taking part in cultural and outdoor sporting activities.

The Château de Saissac and the four chateaus of Lastours are must-sees in the Montagne Noire audoise.

Two applications are available on smartphones: “Pays cathare, le guide” offers users guided tours of the monuments, including the Château de Saissac and the four châteaux of Lastours; the Castrum application enables younger visitors to understand this heritage while playing.

The local heritage of the villages appeals to visitors with their special features: lause on church walls, steep streets, Occitan buildings...

Among the best-known are the medieval festival in Saissac, the “Fête des châtaignes, du vin et des produits de la montagne Noire in Villardonnel, the ’Jazz sous les châtaigners” music festival in Roquefère and the soapbox race in Villardonnel.

The one at Cuxac-Cabardès also offers a fun trail with a detective story suitable for children via a smartphone application.