Mountain · France, Italy
Mont Blanc
Mont Blanc is the highest mountain in the Alps, standing about 4,808 metres tall on the border of France and Italy. Its name means 'White Mountain' because snow covers it all year round.



Picture credit: Christian David (CC BY-SA 4.0) · Krzysztof Golik (CC BY-SA 4.0) · DimiTalen (CC0) · Wikimedia Commons
Where is Mont Blanc?
Mont Blanc is part of the Graian Alps, Mont Blanc massif.
You will find it in: France, Italy.
Summit: 45.833° N, 6.865° E
The story behind it
Mont Blanc formed as the African and European tectonic plates pushed together over tens of millions of years, crumpling the crust upward into the Alps. Its summit is a huge dome of packed snow and ice sitting on a granite base, which means its exact height shifts slightly from year to year as snow builds up or melts away. The valley town of Chamonix at its foot became the birthplace of modern mountaineering after two local men, Jacques Balmat and Michel-Gabriel Paccard, made the first ascent in 1786 to win a prize offered by a Swiss scientist. Today, cable cars whisk tourists partway up for stunning views, while thousands of climbers attempt the summit every summer, though sudden storms, crevasses, and rockfall still make it a genuinely serious mountain, not just a big hill.
Find it on the globe
Mont Blanc is there as a small peak with its own shape — a horn, a ridge, a volcano — standing on the surface. From far away the planet is only a blue ball; detail arrives as you zoom in, and this one appears once you are close enough. Open it on the globe.
It sits at its real coordinates, not near them — the same numbers listed in the facts above. Switch off the layer for this kind of place and it disappears again; the buttons for that are down the right-hand edge.
Questions children ask
How tall is Mont Blanc?
Mont Blanc is about 4,808 metres tall, though the exact figure shifts by a metre or two each year because its summit is a dome of packed snow, not bare rock.
Where is Mont Blanc?
Mont Blanc sits on the border between France and Italy in the Alps, right above the town of Chamonix, and is close to the borders of Switzerland too.
Why is Mont Blanc called the birthplace of mountaineering?
Its first ascent in 1786, made to win a scientific prize, is widely seen as the event that started mountaineering as a sport, inspiring climbers to attempt peaks worldwide.
Where these numbers come from
Every figure on this page was checked against public reference sources before publication. Where sources genuinely disagree, the text says so.
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