Grands Causses is located in southern Massif Central (central range) at the bottom of Cevennes mountains near the city of Millau in the Aveyron-Lozere counties. The area is divided in four major plateau (called here causse): Causse Mejean, Causse Noir (black causse), Causse du Larzac and Causse de Sauveterre. These causses encircled by gorges and towering cliffs are known for their beautiful wild landscape of hash dolomitic limestone plateau and their old and rustic mediaval hamlets. The water erosion over these plateau caused chaotic jagged rocks full of fanciful and the greatest density of natural arches in western Europe.

Causse Mejean - Lozere
The Causse Mejean is the highest of the four Grands Causses with an altitude of over 1000 meters above sea level. It's the most barren and isolated with spectacular overlooks on scenic canyons of Tarn and Jonte Rivers and surrounded by delightful village of Le Rozier. It's also the home of numerous soaring vultures. The Causse Mejean is housing some great arches as the biggest Baous del Biel, the remarkable closest trio of Arcs de St-Pierre and the wonderful free-standing Arcade des Bergers. See gallery above.

Causse Noir - Aveyron
The Causse Noir (Black Causse) is located in Aveyron county of France in the Massif Central area (Central Range). Since 1996, was created the Grands Causses Regional Park included the whole plateau of Causse Noir to preserve both natural resourses and ancient heritage of the land. The Causse Noir is fully encircled by cliffs overhanging the Gorges de la Jonte, Dourbie and Trevezel. The Causse Noir is well know for Montpellier-le-Vieux, a natural area of chaotic jagged rocks full of fanciful formation caused by water erosion over the Limestone plateau. Also, many great caves as the famous "Grotte de Dargilan" occurs in the area.

Causse du Larzac -Herault
Causse du Larzac is the largest and the most arid and uninhabited of the four Grands Causses of the Massif Central (Central Range) of France. This Causse is formed by harsh limestone plateau with many standing rock formation areas as the rocks of "Le Caylar" or "Combalou", and the chaotic cliffs of "Pas de l'Escalette" to the south.