The sanctuary is located at an altitude of 696 metres in the Machaby valley, not far from the town of Arnad, in a splendid position among chestnut woods.
The building, of fourteenth-century origins, was entirely rebuilt in 1687.
In addition to numerous ex-votos, inside there is a 17th century statue of the Madonna, defined by the scholar Bruno Orlandoni as "one of the greatest masterpieces of Baroque sculpture in Valle d’Aosta".
