• Mont Blanc Tunnel

Mont Blanc Tunnel

Resorts: Courmayeur

The Mont Blanc Tunnel constitutes an artery of primary importance for tourist and trade traffic in Europe. It connects Courmayeur, in the Aosta Valley, with Chamonix, on the French side.

Technical Information


In 1787, a year after Jacques Balmat, a Chamonix guide, and Dr. Paccard became the first to climb Mont Blanc, the Geneva scientist Horace Bénédict de Saussure repeated the enterprise. He wrote in his memoirs the same year: “the day will come when a paved road will be dug out under Mont Blanc…” This prophecy came true almost two centuries later. The Mont Blanc Tunnel was opened on 16 July 1965 by the heads of state of Italy and France, Giuseppe Saragat and Charles De Gaulle. The first vehicle entered the tunnel at 6 o’clock on 19 July. Work began in 1959, in January on the Italian side and in May on the French side.

Metre by metre, this new European road was dug out of the mountain by the labour of men. After overcoming all kinds of difficulties, the Italian and French minors met on 14 August 1962. 

For information on toll rates, subscriptions and regulations, see the Tunnel website.

The Mont Blanc Tunnel will close for scheduled works from 8.00 am on 16 October to 10.00 pm on 18 December 2023.

See also

Mountains and glaciers
Monte Bianco - m 4810

Mont Blanc - m. 4,810


The highest mountain in the Alps. It rises on the Italian-French border between the Graian and Pennine Alps. From a geological point of view, Mont Blanc is made up of a granitic nucleus around which emerge metamorphic rocks (gneiss, mica schist and …

Note - this information is not directly connected to the Cammino Balteo path but it is part of the Aosta Valley tourist offer.