The department is surrounded by the following French departments: Alpes-de-Haute-Provence, Drôme, Isère, and Savoie.Italy borders it on the east with the Metropolitan City of Turin and the province of Cuneo, region of Piedmont.. Hautes-Alpes is located in the Alps mountain range. The average elevation is over 1000 m, and the highest elevation is over 4000 m.