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Origin and history

The Menhir de Saint-Julien, called La Roche Longue, is a megalithic monument erected during the Neolithic period. Located in the commune of Saint-Julien (Côtes-d'Armor), it is distinguished by its imposing dimensions: 5.90 meters high, 2.95 meters wide and 1.50 meters thick. Composed of porphyroid granite with large feldspath crystals, it illustrates the techniques of size and transport of the prehistoric societies of the region.

Ranked as historical monuments by order of 1 September 1966, this menhir bears witness to the cultural and symbolic importance of megaliths in Brittany. Its state of conservation and its legal protection make it a remarkable example of the megalithic heritage of the Côtes-d的Armor. Research, such as that carried out by Loïc Langouët in Les megalithes de l'arrondissement de Saint-Brieuc (2005), highlights its integration into a wider network of local prehistoric sites.

The location of the menhir, reported at 5122 La Porte Chambrin in Saint-Julien, remains approximate according to available sources (estimated at 5/10). There is no information on its specific ritual or funeral use, but its presence is part of the Neolithic practices of territorial or commemorative marking. Current data do not mention recent archaeological excavations or discoveries associated with this monument.

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