The MASSIF CENTRAL (French pronunciation: ) is an elevated region in the middle of southern France , consisting of mountains and plateaus . It covers approximately 15 percent of the country.
Subject to volcanism that has subsided in the last 10,000 years, these central mountains are separated from the Alps by a deep north-south cleft created by the Rhône River and known in French as the sillon rhodanien (literally "the furrow of the Rhône").
The region was a barrier to transport within France until the opening of the A75 motorway , which not only made north-south travel easier, but also opened up the Massif Central itself.
* 1 Geography and geology * 2 Mountains * 3 Plateaus * 4 Administration * 5 See also * 6 References * 7 External links
GEOGRAPHY AND GEOLOGY
Main article: Massif Central (geology)
The Massif Central is an old massif , formed during the Variscan orogeny , consisting mostly of granitic and metamorphic rocks. It was powerfully raised and made to look geologically younger in the eastern section by the uplift of the Alps during the Paleogene period and in the southern section by the uplift of the Pyrenees . The massif thus presents a strongly asymmetrical elevation profile with highlands in the south and in the east ( Cévennes ) dominating the valley of the Rhône and the plains of Languedoc and by contrast, the less elevated region of Limousin in the north-west.
These tectonic movements created faults and are maybe at the origin of the volcanism in the Massif Central (but the hypothesis is not proved yet). In fact, above the crystalline foundation, we can observe many volcanoes of many different types and ages : volcanic plateaus (Aubrac, Cézallier), stratovolcanoes ( Mounts of Cantal , Monts Dore ), and small, very recent monogenic volcanoes ( Chaîne des Puys , Vivarais). The entire region contains a large concentration of approximately 450 extinct volcanoes . The strip of "Chaîne des Puys", running north to south and less than 160 km2 (60 sq mi) long, contains 115 of them. The Auvergne Volcanoes National Park is in the massif.
In the south, one remarkable region, made up of features called causses in French, consists of raised calcareous plateaus cut by very deep canyons. The most famous of these is the canyon of Tarn .
Mountain ranges, with notable individual mountains, are (roughly north-to-south):
* Puy de Sancy (1,886 m, 6,188 ft)
* Crêt de la Perdrix (1,431 m, 4,695 ft)
* Pierre-sur-Haute (1,634 m, 5,361 ft)
* Le Signal de Mailhebiau (1,469 m, 4,820 ft)
* Monts de La Margeride
* Signal de Randon (1,551 m, 5,089 ft)
* Monts du Vivarais ( Ardèche )
* Montgrand (1,267 m, 4,157 ft)
* Monts de L'Espinouse
* Sommet de L'Espinouse (1,124 m, 3,688 ft)
* Pic de Nore (1,211 m, 3,973 ft)
Puy de Sancy (1,886 m, 6,188 ft) *
The Cévennes range *
Gorges du Tarn canyon
The following departments are generally considered as part of the Massif Central: Allier , Ardèche , Aude , Aveyron , Cantal , Corrèze , Creuse , Gard , Haute-Loire , Haute-Vienne , Hérault , Loire , Lot , Lozère , Puy-de-Dôme , Rhône , and Tarn .