The history in two lines
Between 1817 and 1834, the Kingdom of Piedmont-Sardinia built five forts to block the Arc valley against France: Victor-Emmanuel, Marie-Christine, Charles-Albert, Charles-Félix and the Marie-Thérèse redoubt, set on the other side of the river at Avrieux. They are named after the royal family. Annexed to France in 1860, the barrier was never used.
What you can do
- Visit Fort Victor-Emmanuel, the largest, and Fort Marie-Christine (restored, with a restaurant and accommodation). Self-guided or guided visits; in winter only Marie-Christine is accessible.
- Walk along the old road of the forts or climb up from Aussois; the Arc gorges and the Devil’s Bridge (pont du Diable) are below.
- The Via Ferrata du Diable: several sections, from very easy to difficult, above the gorges. Equipment can be hired in Aussois, and guiding is available.
- For children: treasure hunts and activities in summer, to be checked with the Aussois tourist office.
Practical information
- By road: about 40 minutes via Modane, then Avrieux or Aussois (Fort Victor-Emmanuel car park).
- Free access to the surroundings; interior visits and the via ferrata are paid, with prices on the official websites.
- Wear walking shoes: the site is sloped and the paths are stony.