It is overlooked from the south by the Pyrenean peaks of Aneto , Montaigu , and Vignemale ( 3,298 m ) , while around the town there are three summits reaching up to 1,000 m , which are known as the BÃ out , the Petit Jer and the Grand Jer . It is overlooked from the south by the Pyrenean peaks of Aneto , Montaigu , and Vignemale ( 3,298 m ) , while around the town there are three summits reaching up to 1000 m which are known as the BÃ out , the Petit Jer ( with its three crosses ) and the Grand Jer ( with its single cross ) which overlook the town .