In this same Armorican souterrain of the Iron Age located in the far north-west of Brittany, at the back of the second room, the bottleneck passage that requires crawling to get from one room to the other is particularly narrow (Brittany, France). [1465N004 © Jérôme and Laurent Triolet/www.mondesouterrain.fr]

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Reference : 1465N004