Explore details about location Montaigu. Montaigu is a location situated within the Lons-le-Saunier alongside other areas such as Chêne-Sec, Largillay-Marsonnay, Sarrogna. Additionally, some smaller parts of Montaigu include specific areas like Chemin de la Chaille, Derrière la Ville, Place de Verdun adding to the diversity of its landscape.