France, Italy and Switzerland meet on the Mont Blanc Massif, and this 3D terrain map brings the whole range together, from peaks and glaciers to valleys, alpine huts and routes. The Tour du Mont Blanc, the Three Monts Route and other mountaineering lines include distance, duration, difficulty and maximum elevation. Dashboards compare peak heights by country, and a storybook with immersive 3D scenes helps hikers, guides and alpine tourism boards plan ahead.