Eye sketch of the Glacier of Chermontane and Col de Fenêtres - Eye sketch of the Pass of the Mont Collon - Eye sketch and magnetic bearings from the Col d'Erin between Evollena and Zermatt

Eye sketch of the Glacier of Chermontane and Col de Fenêtres - Eye sketch of the Pass of the Mont Collon - Eye sketch and magnetic bearings from the Col d'Erin between Evollena and Zermatt