Question: Rufugio Elisabetta is located 3 km north-east of the Col de la Seigne, at the south-wet end of a mountain range in the Alps, located mostly in France and Italy, but also straddling what country? 
Sentence (from "Mont Blanc massif"): Because of its considerable overall altitude, a large proportion of the massif is covered by glaciers, which include the Mer de Glace and the Miage Glacierthe longest glaciers in France and Italy, respectively.
Relevant evidence: No