Mont Blanc is the highest mountain in the Swiss Alps, the highest in Europe west of Russia's Caucasus peaks, at about 15,000 feet. It is situated between the regions of Aosta Valley, Italy, and Haute-Savoie, France. It gave Percy Shelley the title of one of his most powerful poems.

Arveiron is a glacial tributary of Mont Blanc. It is referred to twice by Mary in Six Weeks' Tour. For example, this entry on July 24: "Yesterday morning we went the source of the Arveiron. It is about a league from this village ; the river rolls forth impetuously from an arch of ice, and spreads itself in many streams over a vast space of the valley, ravaged and laid bare by its inundations. The glacier by which its waters are nourished, overhangs this cavern and the plain, and the forests of pine which surround it, with terrible precipices of solid ice.". See Shelley, Mary Wollstonecraft, and Percy Bysshe Shelley, History of a Six Weeks’ Tour Through a Part of France, Switzerland, Germany and Holland: With Letters Descriptive of a Sail Round the Lake of Geneva, and of the Glaciers of Chamouni. T. Hookham, jun. Old Bond Street; and C. and J. Ollier, Welbeck street, 1817, p. 156.

Rising in the northern side of the Mont Blanc in the Alps, the river Arve receives water from the many glaciers of the Chamounix valley. The river is known for its frigid waters.

the Pelissier structure is a scenic bridge over the Arve river, featuring stunning view of Mont Blanc to the north.

La Valais is an extremely mountainous region that includes the highest mountains in Switzerland. The highest mountain ranges are the Pennine Alps, the Bernese Alps, and the Mont Blanc. The Pays de Vaud, on the other hand, is partly mountainous, though visually arresting, having summits of about 3,000 meters.