In 1760, Swiss naturalist Horace-Bénédict de Saussure began to go to Chamonix to observe Mont Blanc.André Fournier, Mer de Glace, La Fontaine de Siloé, Montmélian, 2005, . He tried to summit it with the Courmayeur mountain guide Jean-Laurent Jordaney, a native of Pré-Saint-Didier, who accompanied De Saussure since 1774 on the Miage Glacier and Mont Crammont.
In 1760, Swiss naturalist Horace-Bénédict de Saussure began to go to Chamonix to observe Mont BlancAndré Fournier, Mer de Glace, La Fontaine de Siloé Montmélian, 2005, . He tried to summit it with the Courmayeur mountain guide Jean-Laurent Jordaney, a native of Pré-Saint-Didier who accompanied De Saussure since 1774 on the Miage Glacier and Mont Crammont.