The Ruined Fort of La Redoute

A monument with 400 years of history – perched at 2,400 m, the Fort de La Redoute Ruinée overlooks the Col de La Traversette, offering both a walk through history and breathtaking views.

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.

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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.

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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

Youtube video: 1945 - La libération des Alpes : Le Roc Noir

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.

FAQ

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