Archaeological site

Camp de César

camp protohistorique de Kastel-Ker-Nevé

France Saint-Avé classified historical monument
Camp de César
Camp de César · Wikipedia

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The protohistoric camp of Kastel-Ker-Nevé (or more commonly Caesar's camp) is a former stronghold in the commune of Saint-Avé, in the Morbihan department, probably dating from the Gaulish era.