The Ruined Fort of La Redoute
Location
The fort is situated on a ridge overlooking the entire Haute-Tarentaise valley and commanding a view of the Petit-Saint-Bernard Pass plateau, which provides access to the Aosta Valley in Italy. Visitors are treated to a sweeping panorama, enhanced by the orientation board installed on the top station platform of the Fort chairlift, opposite this entrance.
The majestic Mont Blanc, rising to an altitude of 4,810 metres, forms a natural border between France and Italy, as well as between Haute-Savoie and the Aosta Valley.
Provincial border
From the 11th century onwards, Savoy and the Aosta Valley were two sister provinces forming part of the vast feudal state of the House of Savoy. In 1563, its capital, Chambéry, was moved to Turin. Comprising Turin, the port of Nice and the Alpine passes, this state was coveted by the great European dynasties, including France. The first French occupation, under Francis I (1536–1559), propelled the House of Savoy into the modern era: French became the official language, including in the Aosta Valley.
Several French offensives (in 1600, 1630, 1691 and 1704) led to the construction of bastions and fortifications in this strategic sector. In 1630, a small fort, ‘Fort du Traverset’, was built on the ridge to the east of the Col de la Traversette, facing Mont Valaisan.
In 1713, under the Treaty of Utrecht, the Duke of Savoy was granted the title of King of Sicily, which he exchanged in 1718 for the crown of Sardinia: the States of Savoy thus became the Sardinian States, in which French remained the official language.
In 1760, the Sardinians reinforced the defensive works: at the Petit-Saint-Bernard Pass, they built a barracks opposite the Hospice and a small barrack (known as Fort du Traverset A), linked by the ‘cannon path’ (parts of this path still exist today). They also rebuilt the Fort du Traverset, originally built in 1630, renaming it Traverset B.
During the Revolution
From 1769 onwards, seigneurial rights were abolished in Savoy, 20 years before they were in France.
From 1792 to 1815: French revolutionary troops entered Chambéry in 1792; Savoy and Haute-Savoie then formed a single French department known as ‘le Mont-Blanc’.
However, Sardinian troops put up valiant resistance on the border passes to prevent the French from entering the Aosta Valley. Nevertheless, under the command of General Badelaune, a skilful French attack proved successful: on 24 April 1794, Fort du Traverset was captured and subsequently occupied under the banner of a ‘free fort’.
In 1797, the Treaty of Campo Formio forced the French to abandon the fort after they had rendered it uninhabitable. The Republicans, numbering around 4,000, occupied the villages of Montvalezan for four years. The inhabitants were deeply affected by the bans on religious worship and by the compulsory labour involved in supplying provisions at high altitude (blankets, wood, food for the men, straw and fodder for the mules).
Construction of the Ruined Redoubt
Savoy, which had been part of the First French Empire until 1815, was subsequently returned to Sardinian rule. In 1860, Savoy, Haute-Savoie and Nice were annexed by France and became departments. The Aosta Valley became part of the Kingdom of Italy, whose first king was Victor Emmanuel II, a member of the House of Savoy.
At the Petit-Saint-Bernard Pass, the border – formerly a provincial boundary – became a national border: the threat now came from an Italian attack sweeping down from the mountains, rather than a French offensive emerging from the valley. Following France’s defeat by the Prussians in 1870 and Italy’s accession to the Triple Alliance, new defence strategies were put in place.
At the instigation of the French General Séré de Rivières, several fortified structures were built in the Haute-Tarentaise, a region bordering Italy. Terraced along the slope above Bourg-Saint-Maurice, the forts of Vulmix, Truc and La Platte were crowned by a new border fort. Built at an altitude of 2,400 metres on the Sardinian ruins of Traverset A, it was named ‘Redoute Ruinée’. Completed in 1892, it was visited in 1897 by the President of the French Republic, Félix Faure.
The First World War
In 1914, during the First World War, Italy opted for neutrality towards France. The Redoute Ruinée fort, which was out of any danger of attack, was manned by a civilian guard. The Alpine Chasseurs were then engaged in fighting against the Germans on the north-eastern front in France: the various theatres of operations there were extremely deadly. Of the 80 men from Montvalézan who were called up, 36 lost their lives, representing around 7 per cent of the population.
From 1925 onwards, at Fort de la Redoute Ruinée, a succession of new companies of Alpine Hunters were stationed: the 7th and 27th B.C.A. (Alpine Hunters’ Battalion), the 5th R.T.M. (Regiment of Moroccan Tirailleurs) and the 70th B.A.F. (Alpine Fortress Battalion). Communications relied on optical stations and the efficiency of pigeon flights to Séez.
A number of improvements were made from 1930 onwards: the wireless station, radio communications, cameras, a generator to replace the acetylene lamps, and the ‘ski chute’ for evacuating the wounded.
As early as 1932, firing positions for submachine guns and machine guns were set up inside the fort. On the western ridge overlooking the pass, Lieutenant Le Gac built defensive positions in the rocks. In the surrounding area, the establishment of new outposts provided additional defence (at Roc Noir, Plan du Repos, Les Eucherts and Planpigeux).
In 1936, the commissioning of a cable car from Les Eucherts improved the supply of materials and provisions.
In 1938, operational blockhouses were established within the fort’s enclosure; a vast dormitory hewn out of the rock, known as an ‘abri sous roc’, was connected to the internal passageway.
On the Italian side, in accordance with Mussolini’s wishes, the ‘Vallo Alpino’ defences deployed a network of fortifications across the entire Alpine border range. From 1937 onwards, on the plateau of the Petit-Saint-Bernard Pass (then on Italian territory), casemates, bunkers and concrete anti-tank barriers were built to block the main route through the pass.
The Second World War
On 10 June 1940, Italy declared war on France, carrying out a major mobilisation along the border between the Tarentaise and the Aosta Valley: 52,000 Italian soldiers faced 8,500 French soldiers. That evening, the local population were ordered to leave the area. The families, having left in haste with only the bare essentials, were taken in by farms in the Drôme and Haute-Loire regions.
On 21 June, an Italian air raid was launched on the valley, then targeted the strategic Alpine passes: the Petit-Saint-Bernard Pass and the Traversette Pass.
At the Redoute Ruinée, 40 defenders of the site – soldiers from the 70th B.A.F. – were stationed. These valiant local mountaineers, including François Gaide, Séraphin Maître, Régis Arpin, Marcel Arpin and Marcel Blanc from Montvallez, were commanded by Second Lieutenant Desserteaux. The Le Gac position is held by Sergeant Marcel Cohendoz.
Mussolini’s offensive, first from the air and then on the ground, failed to overcome the fort and the ‘rock shelter’, the only place of refuge. The fire support provided by the French artillerymen of the 164th R.A.P., positioned in the valley, proved effective. However, enemy columns surged through the side passes and invaded the territories of Sainte-Foy, Montvalezan and Séez. At the bottom of the valley, their advance was halted by the actions of the men stationed in the Maginot Line fortifications: the Haricot de Villaroger and the concrete barrier sliding on rails, operated from the Pont du Versoyen blockhouse.
Italian occupation
At the Fort de la Redoute Ruinée, ‘the 100-hour battle’ came to an end on the evening of 24 June 1940. The French soldiers awaited the order to evacuate, surrounded by enemy troops.
On 2 July 1940, Second Lieutenant Desserteaux was ordered to abandon the position by the French authorities. He withdrew with his soldiers, saluted by the Italian troops who paid them honours. The buildings, liberated but damaged by the fighting, remained habitable. In accordance with the terms of the armistice of 25 June 1940, Italian troops moved in and occupied the territories they had captured.
The populations of Montvalezan, Sainte-Foy and Séez were then placed under Italian authority: Italian schoolteachers and priests, Italian identity cards, and the use of the lira, the Italian currency.
The families returning from exile on 2 August were horrified to find their homes vandalised. They gradually resumed their farming activities, forced to endure, for three years, the requisitions imposed by the Italian troops stationed there (3,500 men).
Bourg-Saint-Maurice was not occupied until November 1942, following the Allied landings in North Africa, which led to the deployment of Italian troops throughout Savoie.
German occupation
Following Mussolini’s removal from power and the signing of the armistice with the Allies in September 1943, Italian troops withdrew from the valley and left the fort at the Redoute Ruinée. The Germans immediately took their place, once again forcing the inhabitants to provide accommodation and supplies for the troops.
Each sector was secretly monitored by groups of resistance fighters and those refusing to serve in the Compulsory Labour Service (S.T.O.), who formed ‘the Maquis’. They liaised with the newly formed French Forces of the Interior (F.F.I.), established in 1944. These groups of men, from different backgrounds and holding different views, had to be armed and trained for combat. Their primary mission was the liberation of France following the Allied landings on 6 June 1944 on the Normandy coast and on 15 August 1944 in Provence.
The F.F.I. of the Bulle Battalion, deployed to liberate the Tarentaise, were reinforced by the R.T.A. (Régiment de Tirailleurs Algériens) regiments. Faced with multiple French offensives in the Tarentaise, the Germans, as they fled towards the mountain peaks, ransacked the towns of Bourg-Saint-Maurice and Séez.
On 11 September 1944, the villages of La Rosière and Les Eucherts were liberated. Driven back, the German units of the 157th Infantry Division took up positions on all the ridges blocking the routes to Italy: Le Clapey, Belleface, La Redoute Ruinée, the Petit-Saint-Bernard Pass and the Col du Mont. German mountain infantrymen from the Gebirgsjäger regiment replaced them in November 1944 and drew on the expertise of the Italian fascists belonging to the Alpini Littorio Division.
A new challenge loomed for the French as winter set in: to contain the enemy entrenched at this altitude, or even to regain control of the border. On 1 January 1945, newly reconstituted battalions of Alpine hunters (the 7th, 13th and 27th B.C.A.) formed part of the 5th Half-Brigade of the 27th Alpine Division, drawn from the F.F.I. and commanded by Lieutenant-Colonel De Galbert. Deployed in the Haute-Tarentaise, they were trained in skiing techniques at the Peisey-Nancroix ski school. With strategic support from the Resistance, they undertook numerous perilous attempts in deeply snow-covered terrain.
The Liberation
On 1 March 1945, the Alpine Army Detachment was officially formed under the command of General Doyen, who planned offensives against strategic Alpine passes. In this sector, he prioritised an operation directed towards Le Clapey, a key stronghold in the enemy’s defences. Supported by artillery, a section of ski scouts from the 7th B.C.A., led by Émile Paganon, successfully attacked it on 23 March 1945.
On 31 March 1945, the ski scouts of the 13th B.C.A., reinforced by men from the 7th and 27th B.C.A., set out to storm the Roc Noir, another major stronghold. As artillery fire was ineffective in the snow, it was through fierce hand-to-hand combat in the snow-filled trenches that the French troops liberated the two strategic points (at altitudes of 2,342 m and 2,413 m).
On 10 April 1945, ski scouts from the 7th B.C.A. distinguished themselves heroically at Belleface, at an altitude of 2,800 m. First on skis, then on crampons, the sections led by Wolf and Paganon, assisted by the valiant locals Ulysse Bozonnet, Marcel Cohendoz and Marcel Gaidet, reached the igloos where the Alpini and Germans were entrenched, using crampons and ice axes. After the decisive assaults, they took up position and held this perilous ground until 21 April. On that day, a bloody counter-attack led by the Germans forced the surviving Frenchmen to retreat down a steep couloir in the midst of a snowstorm.
All these battles, fought at high altitude during the winter, claimed the lives of 90 French soldiers. They marked the key moments in the liberation of the Alps in April 1945.
An annual commemoration is organised by the 13th B.C.A. in Chambéry, whose garrison is known as Quartier Roc Noir.
On 27 April, the 27th Alpine Division entered Italy via the Briançon and Ubaye regions.
On 28 April 1945, Mussolini was arrested and subsequently executed. In Germany, Himmler proposed a surrender, which was formalised on 29 April. German troops withdrew hastily from the border and the Aosta Valley.
In Italy, 25 April was established as Liberation Day: this is a conventional date, as not all towns were liberated on that day.
In accordance with General de Gaulle’s wishes – who sought to occupy as much of enemy territory as possible at the time of the peace negotiations – French troops were deployed in Italy, under Allied control. These expansionist aims, fuelled by pro-French propaganda in the Aosta Valley, irritated Harry Truman, the new President of the United States. He ordered the French to withdraw, which took place at the end of June. The annexation of the Aosta Valley to France was a plan that General de Gaulle had now abandoned. However, in 1947, a border adjustment was agreed upon at the mountain pass, established along the watershed.
The Aosta Valley succeeded in negotiating a special status within the Italian Republic: it was established as an autonomous region with official bilingualism (Italian and French).
Occupation by the Alpine Chasseurs
In 1888, the first battalions of Alpine Chasseurs on foot (B.A.C.P.) were formed. A detachment from the 22nd B.A.C.P. was stationed at the Redoute Ruinée from 1892 to 1895, after which it was replaced by a detachment from the 11th B.A.C.P. until 1914. Around forty Alpine chasseurs were trained in skiing techniques at the École normale militaire in Briançon. They were stationed there for a year, also receiving training in mountaineering, combat drills and marksmanship. Topographical surveys enabled the first staff maps to be drawn up.
On foot, the soldiers took a daily route along a path marked by three rudimentary shelters intended for rest or emergency assistance (Plan du Repos, the refuges at 22 and 11), now known as the ‘soldiers’ path’. It led to a post at Les Eucherts, where supplies and mail arrived, transported by mule from Séez. These journeys proved perilous in winter: a lamp and a horn served as warning signals. On the access road to this site, at the Col des Embrasures, a monument commemorates the deadly avalanche of 1897.
The soldiers took part in major construction projects: the military road linking Les Eucherts to the fort was built between 1894 and 1895, and the Roc Noir artillery position was constructed in 1898.
Life was organised according to the rhythm dictated by the climate and the altitude. Clearing snow in winter, maintaining the 1,700-metre-long water pipeline, keeping the fire going, doing the washing, cooking and cleaning made the men self-reliant and fostered a sense of solidarity:
‘Some days were tough… but we never got downhearted, because above all we loved the mountains… The beautiful starry skies filled us with joy… At evening gatherings, storytellers, musicians and singers helped us forget…”
During their downtime, some would carve their names into the surrounding rocks or onto the slate slabs from the nearby quarry; others took pleasure in extracting a few quartz crystals from the rock. In these moments of solitude, the rock seemed to become a silent and endearing companion, with whom they communicated through carving.
Post commanders with distinguished careers
Following their service at this high-altitude post, some post commanders went on to distinguish themselves in major military operations: Louis Garbit, Raoul Bouquet, Roger L’Eleu, Louis Ferzelle, Louis Joseph Dingeon, Armand Goez, Charles Henri Lobligeois, Paul André Doyen, Julien Ance, Paul Beynet, Humbert Clair, Guy Villers, Emmanuel Dupont, Gaston Delcros de Ferran, Fernand Albouy, Gérard Thiou and Henri Desserteaux.
The future of the fort
During the latter part of the Second World War, the Germans were stationed here. Repeated artillery attacks by the French from Viclaire, Orbassy, Courbaton and Longefoy caused considerable damage to the Fort de la Redoute Ruinée and the cable car (the ruins of the arrival station are visible in the south courtyard). Only the western entrance gate, flanked by the drawbridge which remains intact, bears witness to the site’s history.
Now owned by the municipality of Montvalezan, the site is the subject of a call for proposals aimed at ensuring it is not forgotten and at giving it a new purpose.
Text and photos:
Gisèle Gaide and Roger Gaide, co-authors of the book *La Rosière, skiers, builders and soldiers*, and Laurent Demouzon, author of the book *La Redoute Ruinée*.
These books are available at the Petit-Saint-Bernard Pass (Bar Lancebranlette, Hospice reception) and in La Rosière (Tourist Office, Carrefour Montagne and Tyrol).
1945 – The Liberation of the Alps: Le Roc Noir on video
In 1945, the Alpine hunters of the 13th BCA fought fierce battles at Roc Noir. Eighty years later, they returned to these historic sites to re-enact those clashes. Combining archive footage with modern re-enactments, this original documentary recounts these decisive battles for the Savoie Battalion. Alongside the director and historian, Serge Tignères, the 13th BCA invites you to rediscover a little-known but essential chapter in our military history.
In the 20th century, this site served as a training ground for *Chasseurs Alpins* (mountain infantry), particularly for high-altitude training involving military skiing, survival skills, snow clearing, and missions in extreme conditions. It was also the scene of fierce fighting during the Revolution, as well as in 1940 and 1945.
The site offers a 360° panoramic view of the Petit-Saint-Bernard Pass, the surrounding mountains and the Italian side of Mont Blanc.
No, the interior of the fort is not open to the public due to its condition and military history. Visitors may only explore the exterior and the surrounding area