Valle d'Aosta

geographical name
Val·​le d'Ao·​sta | \ˌvä-lā-dä-ˈȯs-tä \
variants: or Val d'Aosta \ ˌväl-​dä-​ \

Definition of Valle d'Aosta 

autonomous region of northwestern Italy bordering on France and Switzerland northwest of Piedmont; capital Aosta area 1260 square miles (3263 square kilometers), population 126,806

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