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| Préalpes | |
|---|---|
| Name | Préalpes |
| Country | France; Switzerland; Italy |
| Region | Alps |
| Highest | Montagne Sainte-Victoire? |
Préalpes
The Préalpes are a series of lower mountain ranges on the periphery of the Alps spanning parts of France, Switzerland, and Italy. They form transitional belts between Alpine massifs and adjacent lowlands such as the Rhône Valley, the Po Valley, and the Provence plain, and have influenced routes like the Via Domitia, the Great Saint Bernard Pass, and the Brenner Pass. Their landscapes intersect with regions including Provence-Alpes-Côte d'Azur, Auvergne-Rhône-Alpes, Valais, Ticino, and Lombardy and are referenced in works by travelers such as Jean-Jacques Rousseau, Lord Byron, and Giacomo Leopardi.
The term derives from French medieval usage distinguishing préalpine relief from central Alpine massifs in documents like charters of Dauphiné, registers of Savoy, and maps by cartographers such as Gerardus Mercator and Cassini family. Scholarly definitions vary among institutions including the International Geographical Union, the French National Centre for Scientific Research, and the Swiss Alpine Club, while guidebooks by publishers like IGN (Institut Géographique National), Rother Verlag, and Delius Klasing adopt practical delimitations used by the Comité de Défense des Préalpes and regional administrations such as the Conseil régional Provence-Alpes-Côte d'Azur. Historical usage appears in travelogues by Stendhal and administrative decrees of the Kingdom of Sardinia.
Geographically the Préalpes comprise discrete chains and plateaus including the Vercors Massif, Chartreuse Mountains, Luberon, Montagne Sainte-Victoire, Jura foothills, Broussard ridges, Chablais forelands, and the Susa Valley approaches. They border massifs such as the Massif des Écrins, Mont Blanc Massif, Pennine Alps, and Dolomites and lie adjacent to basins like the Rhone Basin, Arno Basin, and Po Plain. Major towns and cities in or near the Préalpes include Grenoble, Aix-en-Provence, Gap, Annecy, Chambéry, Nice, Turin, and Lausanne. Transport corridors that thread these ranges include the A6 autoroute, A7 autoroute, the Mont Cenis Tunnel, the Simplon Tunnel, and rail links such as Ligne de la Côte and the Gotthard railway.
The Préalpes record thrust-and-fold structures tied to the Alpine orogeny described in literature by geologists like Eduard Suess, Alfred Wegener, and André Allix. Rock assemblages include marl, flysch, limestone, dolomite, and variegated schist sequences comparable to those in the Dolomites and Carpathians. Prominent structural features analyzed in studies at Université Grenoble Alpes, ETH Zurich, and the University of Milan include reverse faults, klippes, nappes such as the Helvetic nappes, and synclinal basins like the Val d'Isère syncline. Karstic plateaus with sinkholes and caves, investigated alongside sites like Fontaine de Vaucluse and the Grotte de Choranche, produce escarpments and poljes familiar to geomorphologists from CNRS projects and UNESCO biosphere nominations.
Climates range from Mediterranean influences near Provence and Liguria to continental and alpine microclimates around Isère and Savoie, monitored by services such as Météo-France, MeteoSwiss, and ARPA Lombardia. Orographic lift produces precipitation patterns affecting watersheds like the Rhone, Durance, Adda, and Drôme, with snowpack dynamics important to agencies including the European Centre for Medium-Range Weather Forecasts and the Global Cryosphere Watch. Major springs and rivers originate in these ranges—examples include tributaries feeding the Isère River and the Var River—and hydroelectric installations owned by companies like EDF and Repower exploit local gradients. Floods and droughts have been documented in archives kept by Archives départementales des Alpes-de-Haute-Provence and emergency services such as Sécurité Civile.
Vegetation gradients include thermophilous oak woods, chestnut groves associated with communes like Sisteron and Forcalquier, beech-fir mixes higher up, and alpine meadows managed in common with pastoral traditions in municipalities such as Saint-Étienne-en-Dévoluy and Molveno. Notable species and protected taxa occur alongside conservation efforts by organizations like Parc national des Écrins, Parc naturel régional du Vercors, WWF France, and BirdLife International sites in the Luberon Regional Natural Park. Fauna includes populations of chamois, ibex reintroductions studied at Université de Turin, red deer herds, raptors like the golden eagle, and amphibians in wetlands catalogued by the IUCN Red List assessments and local naturalists' groups in Alpine Club sections.
Human presence includes prehistoric occupation documented at cave sites comparable to those studied by Jacques Boucher de Perthes and Neolithic remains found near Barcelonnette and Chalain. Roman infrastructures such as the Via Domitia and Roman villas appear in archaeological records curated by institutions like the Musée de l'Arles et de la Province and Museo Nazionale Romano. Medieval lordships of Counts of Provence, House of Savoy, and communes like Gap shaped settlement patterns; fortifications include works by military engineers such as Vauban and civil architecture preserved in towns like Grasse and Aosta. Modern demographic trends followed industrialization tied to textile manufactories in Calais? and hydropower development by firms including Schweitzer Engineering Laboratories partners, while cultural figures such as Paul Cézanne and Gustave Flaubert drew inspiration from Prealpine landscapes.
Economic activities combine pastoralism, forestry, quarrying for building stone used in Provençal architecture, and mountain agriculture marketed through cooperatives like those linked to Slow Food and Chambres d'agriculture. Tourism includes alpine sports at resorts marketed alongside names such as Les Gets, Serre Chevalier, Cortina d'Ampezzo? and wellness tourism in spa towns similar to Aix-les-Bains, with infrastructure developed by operators like Ski France and hospitality groups including AccorHotels. Outdoor recreation, hiking trails maintained by the French Hiking Federation and Club Alpino Italiano, cycling routes that feature in stages of the Tour de France and regional festivals like Festival d'Avignon and Carnival of Venice generate seasonal economies. Conservation and sustainable development projects involve partnerships with European Union regional funds, national agencies such as Ministry of Ecological Transition (France), and NGOs including Conservatoire du littoral.
Category:Mountain ranges of the Alps