Map coming soon: The Mont Blanc Massif
The Roof of the Alps in a New MountainCarto Panoramic Map
The next map by MountainCarto is almost ready: a new panoramic representation dedicated to the Mont Blanc Massif, the highest mountain group in the Alps and one of the most celebrated alpine landscapes in the world. The map covers the entire massif in 2.5D oblique projection — from the French slopes of Chamonix and Argentière to the Courmayeur side with Val Veny and Val Ferret. It will be available in the shop within a few days.
Below you can already explore the interactive map in preview, zooming in on various details at will. And if you wish, you can embed it on your website or blog using the share button inside the map and following the instructions.
A Massif Across Three Countries
The Mont Blanc Massif extends across France, Italy and Switzerland, occupying a compact yet extraordinarily complex territory. The map shows this cross-border reality immediately: to the north-west the Chamonix Valley with its sequence of spires and glaciers; to the south the Italian valleys descending towards Courmayeur and the Aosta Valley; to the north-east the Swiss sector with Champex-Lac, Orsières and Sembrancher.
The Mont Blanc Massif is not only the highest mountain in the Alps, but a vast mountain system stretching across Italy, France and Switzerland. It is a continuous interweaving of granite ridges, snowy domes and great glaciers that goes beyond the very idea of an isolated summit.
Mont Blanc (4,808 m) — flanked by Mont Blanc du Tacul and Mont Maudit along the great summit ridge — dominates the map not only for its altitude, but for its sheer mass. It does not have the pyramidal shape of the Matterhorn or the Weisshorn: it imposes itself through its extent, the quantity of ice it carries, the number of peaks that compose it.
A little further west lies the powerful Grandes Jorasses ridge, whose north face is one of the great walls of European alpinism. Among these severe peaks rises the unmistakable form of the Dent du Géant, a granite needle marking the border between Italy and France and one of the most iconic visual landmarks of the entire massif.
The Glaciers: The Hidden Architecture of the Massif
Mont Blanc is, first and foremost, a great glacial system. The vast Glacier du Géant, together with the nearby Vallée Blanche — which merge first into the Glacier du Tacul and further down into the Mer de Glace — shape one of the most spectacular glacial plateaus in the entire Alpine arc. Here the morphology spreads out into a sea of ice suspended among the Aiguilles, a high-altitude landscape combining grandeur and extraordinary delicacy.
On the Italian side, the Miage Glacier extends at the foot of the Aiguilles de Trélatête and Mont Blanc itself, distinguished by its characteristic debris cover. In terms of its extent, it is one of the largest glaciers on the southern flank of the massif.
To the north-east, the Plateau du Trient forms a vast glacial basin suspended between Switzerland and France and, together with the Tour and Argentière glaciers, completes the glacial arc of the northern sector.
To the South: The Trélatête Extension
To the south, the massif extends into the Aiguille de Trélatête group (3,930 m), where the landscape becomes broader and more glacial. Here the ridges lengthen and the great snowfields feed the Miage Glacier, defining a less vertical but wide-open sector.
To the North and East: Dolent, Argentière, Trient
Mont Dolent (3,823 m) marks the tri-border point between the three countries, while the Aiguille Verte and Aiguille d'Argentière dominate the glacier of the same name with some of the most celebrated walls in the Alps. To the north, the Aiguille du Tour closes the system, completing a massif that does not end at the single summit of Mont Blanc but unfolds as a true alpine constellation.
A Unified Geographical Organism
Considered in its entirety — from the Trélatête to the south through to the Dolent–Argentière–Trient sector to the north — the Mont Blanc Massif is a unified geographical organism, where ridges and glaciers form a continuous structure. It is not only the "roof of Europe", but one of the great mountain systems of the continent: a high-altitude landscape in which iconic peaks and vast glacial masses build a unique balance between verticality and vastness.
The Tour du Mont Blanc on the Map
Among the most recognisable elements for hikers is the route of the Tour du Mont Blanc (TMB), the celebrated circular trail of approximately 170 km that traces the entire perimeter of the massif, passing through Italy, France and Switzerland. It is one of the most frequented treks in the world and represents a privileged geographical key to understanding the entire mountain system.
On the map the route is shown as a deliberately understated yellow line: visible enough to be followed throughout the arc of the massif, but not so prominent as to upset the graphic balance of the whole. The trail guides the eye around the great ridges and principal glacial basins, allowing those who know it to retrace the stages they have walked, and those who have yet to attempt it to grasp its territorial logic.
Data Sources
The map was created from open geographic data sourced from official institutions for each national side — a necessary choice for a massif that spans three countries:
- OpenStreetMap — place names, roads, trails, mountain huts and settlements
- swisstopo — high-resolution digital terrain model for the Swiss sector
- IGN (Institut national de l'information géographique et forestière) — topographic data and DEM for the French side
- Land cover from Copernicus Sentinel data: © ESA WorldCover project 2025
- Autonomous Region of Valle d'Aosta — geographic data for the Italian side