Mont Blanc in the context of "Ferret Valley"

The Alps (/ælps/) are some of the highest and most extensive mountain ranges in Europe, stretching approximately 1,200 km (750 mi) across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia.

The Alpine arch extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn.

Haute-Savoie (French: [ot savwa] ; Arpitan: Savouè d'Amont; Italian: Alta Savoia) is a department in the Auvergne-Rhône-Alpes region of Southeastern France, bordering both Switzerland and Italy. Its prefecture is Annecy. To the north is Lake Geneva; to the south and southeast are Mont Blanc and the Aravis mountain range.

It holds its name from the Savoy historical region, as does the department of Savoie, located south of Haute-Savoie. In 2019, it had a population of 826,094. Its subprefectures are Bonneville, Saint-Julien-en-Genevois and Thonon-les-Bains. The French entrance to the Mont Blanc Tunnel into Italy is in Haute-Savoie. It is noted for winter sports; the first Winter Olympic Games were held at Chamonix in 1924.

Chamonix-Mont-Blanc (French pronunciation: [ʃamɔni mɔ̃ blɑ̃]; Arpitan: Chamôni-Mont-Blanc; Italian: Sciamonìcode: ita promoted to code: it (no longer in use)), more commonly known simply as Chamonix (Chamôni), is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in Southeastern France. It was the site of the first Winter Olympics, held in 1924.

Chamonix is situated in the French Alps just north of Mont Blanc, the highest mountain in Western Europe. Between the peaks of the Aiguilles Rouges and the notable Aiguille du Midi, it borders both Switzerland and Italy. It is one of the oldest ski resorts in France, popular with alpinists and mountain enthusiasts. Via the cable car lift to the Aiguille du Midi it is possible to access the off-piste ski run of the Vallée Blanche ('white valley').

The France–Italy border is 515 km (320 mi) long. It runs from the Alps in the north, a region in which it passes over Mont Blanc, down to the Mediterranean coast in the south. Three national parks are located along the border: Vanoise National Park and Mercantour National Park on the French side and Gran Paradiso National Park on the Italian side.

The Mont Blanc Tunnel (French: Tunnel du Mont-Blanc, Italian: Traforo del Monte Bianco) is a highway tunnel between France and Italy, under Mont Blanc in the Alps. It links Chamonix, Haute-Savoie, France with Courmayeur, Aosta Valley, Italy, via the French Route Nationale 205 and the Italian Traforo T1 (forming the European route E25), in particular the motorways serving Geneva (A40 of France) and Turin (A5 of Italy). The passageway is one of the major trans-Alpine transport routes, particularly for Italy, which relies on this tunnel for transporting as much as one-third of its freight to northern Europe. It reduces the route from France to Turin by 50 kilometres (30 miles) and to Milan by 100 km (60 mi). Northeast of Mont Blanc's summit, the tunnel is about 15 km (10 mi) southwest of the tripoint with Switzerland, near Mont Dolent.

The agreement between France and Italy on building a tunnel was signed in 1949. Two operating companies were founded, each responsible for one half of the tunnel: the French Autoroutes et tunnel du Mont-Blanc (ATMB), founded on 30 April 1958, and the Italian Società italiana per azioni per il Traforo del Monte Bianco (SITMB), founded on 1 September 1957. Drilling began in 1959 and was completed in 1962; the tunnel was opened to traffic on 19 July 1965.

The Mont Blanc massif (French: Massif du Mont-Blanc [masif dy mɔ̃ blɑ̃]; Italian: Massiccio del Monte Bianco) is a mountain range in the Alps, located mostly in France and Italy, but also straddling Switzerland at its northeastern end. It contains eleven major independent summits, each over 4,000 metres (13,123 ft) in height. It is named after Mont Blanc (4,808 metres (15,774 ft)), the highest point in western Europe and the European Union. Because of its considerable overall altitude, a large proportion of the massif is covered by glaciers, which include the Mer de Glace and the Miage Glacier – the longest glaciers in France and Italy, respectively.

The massif forms a watershed between the vast catchments of the rivers Rhône and Po, and a tripoint between France, Italy and Switzerland; it also marks the border between two climate regions by separating the northern and western Alps from the southern Alps. The mountains of the massif consist mostly of granite and gneiss rocks and at high altitudes the vegetation is an arctic-alpine flora.

The Dufourspitze is the highest peak of Monte Rosa, an ice-covered mountain massif in the Alps. Dufourspitze is the highest mountain of both Switzerland and the Pennine Alps and is also the second-highest mountain of the Alps and Western Europe, after Mont Blanc. It is located between Switzerland (Canton of Valais) and Italy (Piedmont and Aosta Valley). The peak itself is located wholly in Switzerland.

Following a long series of attempts beginning in the early nineteenth century, Monte Rosa's summit, then still called Höchste Spitze (English: Highest Peak), was first reached on 1 August, the Swiss National celebration day, in 1855 from Zermatt by a party of eight climbers led by three guides: Matthäus and Johannes Zumtaugwald, Ulrich Lauener, Christopher and James Smyth, Charles Hudson, John Birkbeck and Edward Stephenson.

The Vallot Hut (French: Refuge Vallot) is a refuge in the Mont Blanc massif on the upper slopes of Mont Blanc in the Alps. It is located below the Bosses Ridge between the Dome du Gouter and Mont Blanc summit, at an altitude of 4,362 metres. Intended only as an emergency shelter, and not as a base for ascending Mont Blanc, this unheated duralumin box was designed to accommodate up to 12 people, but often contains considerably more.