The Cairn of Barnenez is a Neolithic monument located near Plouezoc'h, on the Kernéléhen peninsula in northern Finistère. It dates to the early Neolithic, about 4500 BC; it is considered one of the earliest megalithic monuments in Europe. It is also remarkable for the presence of megalithic art.

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• Adress Route D76 | Barnenes ar Sant, 29252 Lanmeur
• Website http://barnenez.monuments-nationaux.fr