American forces in late September, but was evacuated for the winter in October. The reactivated Fort Chaberton continued to fire on Briançon until it was captured in April 1945. Roche-la-Croix was captured by a new offensive on 22 April 1945. The next day Saint-Ours Haut and Bas were captured. Post-War As part of the Paris Peace Treaties of 1947, the Franco-Italian border was adjusted to place Mont Chaberton and the upper reaches of the Col du Larche in France. Nevertheless, the major Alpine positions remained operational, preserved until the 1970s when interest in expensive fixed fortifications had declined. Present status Both Saint-Ours Haut and Saint-Ours Bas have been preserved and are available for tours by the public. Ouvrage Janus is owned by the Commune of Montgenèvre, and is being considered for public access. Many of the high-altitude positions are open to the elements. The Vauban and Séré de Rivières-era fortifications around Briançon have been preserved, or remain military installations. The Vauban fortifications of Briançon have been designated Unesco World Heritage Sites. Notes References Bibliography Allcorn, William. The Maginot Line 1928-45. Oxford: Osprey Publishing, 2003. Kaufmann, J.E. and Kaufmann, H.W. Fortress France: The Maginot Line and French Defenses in World War II, Stackpole Books, 2006. Kaufmann, J.E. , Kaufmann, H.W., Jancovič-Potočnik, A. and Lang, P. The Maginot Line: History and Guide, Pen and Sword, 2011. Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 2. Paris, Histoire & Collections, 2001. Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 4 - La fortification alpine. Paris, Histoire & Collections, 2009. Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. Hommes et Ouvrages de la Ligne Maginot, Tome 5. Paris, Histoire & Collections, 2009. External links Fort de l'Infernet at Chemins de Mèmoire Fort de la Croix de Bretagne at Chemins de Mèmoire Fort du Randouillet at Chemins de Mèmoire Fort des Têtes at Chemins de Mèmoire Secteur Fortifié du Dauphiné at ligne.maginot.corf.free.fr Le secteur fortifié du Dauphiné |at wikimaginot.eu Fortified Sector of Dauphine Alpine Line French border defenses before World War II