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Heritage classified

Origin and history

The dolmen of Kerhenry, located in the municipality of Arradon (Morbihan), is a megalithic vestige of the Neolithic. Oriented east-west, it adopts a characteristic "U" shape, with a funeral chamber measuring about 1.80 m in length. Its slightly tilted cover table has semi-spherical cups arranged in semi-circle on its outer side, as well as a stone block located 2.50 m from the entrance. Excavations revealed fragments of black and red pottery, as well as lithic flint tools (arrows, piercings), attesting to its funeral and ritual use.

In 2010, a clearing campaign freed the site of invasive vegetation, facilitating its study and preservation. The dolmen, accompanied by its tumulus, was officially listed as historical monuments by order of 24 July 2023, thus protecting the structure and its immediate environment (soil plate within a radius of 30 meters). This ranking underlines its heritage importance in the megalithic landscape of Breton, already rich in comparable sites such as those of Morbihan.

The archaeological elements discovered — pottery and tools — suggest a human occupation linked to funeral and perhaps cultual practices. Kerhenry's dolmen is part of a neolithic tradition of building collective burials, reflecting the social organization and beliefs of the communities of the time. Its state of preservation, despite the tipping of the table, offers a valuable testimony of construction techniques and regional megalithic art.

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