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Heritage classified

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Origin and history

The Dolmen d'Er-Roh, also known as the Dolmen de Lannek-er-Men or Brillac, is a megalithic monument located in the hamlet of Port-Brillac, on the municipality of Sarzeau, in the department of Morbihan. This gallery dolmen, dated from the Neolithic, is distinguished by its structure composed of eleven orthostats, two slabs of cover and a pavement slab decorated with cupules. Its room, of losangic shape, is accessible by a short corridor, characteristic of the funeral buildings of that time.

Ranked as historical monuments by order of 10 May 1925 (for the dolmen) and 12 October 1939 (for the building), the site was restored in 1936 under the direction of Zacharie Le Rouzic, a Breton archaeologist specializing in megaliths. The dolmen is about 3 metres long and illustrates the funeral and architectural practices of the Neolithic societies of the region. Its location, marked on the Dolmen Road, makes it a tangible testimony of the prehistoric Breton heritage.

The monument now belongs to the municipality of Sarzeau and is located at approximately 35 Route de Bernon. Although its geographical accuracy is assessed as "passable" (note 5/10), it remains an emblematic site for the study of gallery dolmens in Brittany. The available sources, including Wikipedia and the Merimée base (Monumentum), confirm its archaeological importance and legal protection as a classified communal property.

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