briançon highest city in france fortification of vauban

active albedo alps altitude apex beautiful blue briancon chevalier city cold cover dauphiné down downhill elevation europe france freeze fresh glacier grooming high highest hill history holiday ice landmark landscape lift lookout mountains nature panorama peak piste pistes pub region resort restaurant scenery season serre sight sign ski skies slope slopes snow sport spring sunny top unesco vacation valley vauban view white winter wonderful world yret