The landscapes of the causses are characteristic of the geography of the south of the Massif Central. With a karstic-type geology, they have a plateau profile bordered by deep gorges or canyons. The soils of these mid-mountain territories are generally shallow and covered with natural grasslands. Sheep farming of the pastoral type has established itself here and has contributed to the shaping of the landscapes. The main Causses: Causse Méjean, Causse Noir, Causse de Sauveterre, Causse de Blandas and Causse du Larzac.
The open landscapes, the rich heritage and the authenticity of these territories make them privileged sites for hiking and mountain biking. As for the cliffs of the gorges that border these causses, they are major sites for climbing.