This common Gersoise about 400 inhabitants (called St. Christois (e)), located west of the department between Nogaro and Manciet, rises to 175 meters above sea level for an area of 22.5 km².
Crossed by the Way of Saint Jacques de Compostella (GR65), its undulating landscape, heritage and green spaces give it an undeniable charm appreciated by tourists for a rest or a picnic break.