Properly Chamonix, this valley lies in France at the northern approach to Mont Blanc.
Mary and Percy Bysshe Shelley, along with Claire Clairmont, made an excursion to this
valley of almost a week from 21 to 27 July, 1816, while Mary was deep in the writing
of her novel. A long description of the excursion, written by Shelley to Thomas Love
Peacock, was included in A History of a Six Weeks' Tour (see Letter 4).