Lourdes is situated in the Southwest of the Hautes-Pyrénées department, in a verdant basin, leaning on the first Pyrenean foothills. At an altitude of 420 meter, Lourdes is a central point around which radiate the valleys of Batsurguère, Castelloubon, Arcizac, Pau and Tarbes, towards the plain. In the south some crest of famous Pyrenean peaks stand out: Montaigu, Aneto, Vignemale (3.298m), and against the city, there are three summits reaching between 800 and 1.000 meters, the Béout, the Petit Jer with its three crosses and the Grand Jer with its huge cross watching over the town. The Fortified Castle rises at the middle of the city, leaning on the escarpment.