These are not uncommon in rural France, often seen at the edges of fields, abutting onto a much used road, so that motorists too may notice and appreciate them. This one is about 15-20 minutes walk from Vignouse and is on the main drag of roads beside a dairy farm.
You may be interested in what Wikipedia adds.
Calvary cross
A calvary (calvaire in French) is a type of monumental public crucifix, sometimes encased in an open shrine, most commonly found across northern France from Brittany east, through Belgium and Portugal and Galicia (North West of Spain), where they are called "cruzeiro", "cruceiro" or "crucero". They are equally familiar as wayside structures provided with minimal sheltering roofs in Italy and Spain. The Breton calvaire is distinguished from a simple crucifix cross by the inclusion of three-dimensional figures surrounding the Crucifixion itself, typically representing Mary and the apostles of Jesus, though later saints and symbolic figures may also be depicted.