Sentiero della Memoria

High on the pass that joins the Aosta Valley with France, the Sentiero della Memoria threads a single easy loop through roughly five millennia of mountain history. Stone circles, Roman walls, a hospice and wartime bunkers stand within a short walk of each other, each explained on site by panels and sculpted figures.

Why it matters

Most alpine trails offer scenery. This one offers a readable chronicle. The Colle del Piccolo San Bernardo, at 2,188 metres, has been a crossing point since prehistory, and the Sentiero della Memoria brings together the site's archaeological and later historical remains. The regional tourism authority describes the pass as an open-air museum, and the Sentiero della Memoria is one of its interpretive circuits.

The route brings together heritage points including a Celtic stone circle, the remains of a Roman rest station on the road to Gaul, the hospice founded by Saint Bernard of Aosta, a column that has carried pagan, Roman and Christian meanings in turn, Second World War fortifications and memorials. The layered history of the pass forms part of La Thuile's wider "Museo a Cielo Aperto" (open-air museum) project.

What to notice

The cromlech is a stone circle traditionally attributed to Celtic builders and associated with a solar alignment; a road crossed the area from 1856 to 2012, removing some of its stones.

Nearby are the walls of the Roman mansio, a travellers' rest on the ancient road towards Gaul. Interpretation describes cells for guests, stabling and courtyards, and identifies it as one of the highest-lying rest stations of its kind. Nearby, the Colonna di Joux (also called the Colonna di Giove) marks a spot associated with a temple to Jupiter; its present statue of Saint Bernard embodies the pass's shift from pagan cult to Christian hospitality.

On the French side of the saddle stands the hospice, restored after wartime destruction, and the path also passes bunkers of the Vallo Alpino del Littorio and a memorial to former internees. Interpretive signage uses silhouettes and figures to present the site's layered history.

Context and history

The pass the Romans called Alpis Graia carried people and goods between the Po Valley and Gaul for centuries, and the mansio ruins are the direct physical trace of that traffic. The cromlech predates Rome by a wide margin, commonly dated to around 2,700 years ago in the site's interpretive materials.

Medieval memory belongs to Saint Bernard of Aosta, who founded the hospice around the eleventh century to shelter pilgrims and travellers on this dangerous crossing. In the later nineteenth century Abbot Pierre Chanoux ran the hospice for decades and founded the Chanousia alpine botanical garden beside it, and the chapel bearing his name is on the trail. The twentieth century left its own marks: fighting swept the pass in June 1940, the hospice was destroyed and later rebuilt through Italian-French Rotary cooperation by 1995, and the bunkers and anti-tank works of the interwar alpine wall still dot the grassland.