Timeline

Heritage classified

Key figures

Origin and history

Mané Rohr's dolmen, also known as the dolmen de Kerdro-Vihan or Men er Roch, is a megalithic building emblematic of Neolithic, located in the municipality of La Trinité-sur-Mer, Morbihan. This funerary monument, typical of Breton megalithic architecture, consists of a circular tumulus of 20 meters in diameter, housing an access corridor and a paved room. Its structure, partially preserved, reveals eight orthostats and a central pillar supporting a massive cover table, illustrating the sophisticated construction techniques of the time.

The site was first explored in 1866 by the Morbihan Polymathic Society, which discovered in the funeral chamber artifacts such as a flint knife, fragments of terracotta vases and resin. In 1899, the archaeologist Zacharie Le Rouzic undertook more in-depth excavations, revealing a rich furniture: decorated pottery, fusaïoles, trimmings (schist hangers, necklace grains), as well as flint tools, including a dagger from Grand-Pressigny. These objects, now preserved at the Museum of Prehistory in Carnac, bear witness to the funeral and artisanal practices of local neolithic communities.

Ranked as historical monuments by decree of 30 August 1947, Mané Rohr's dolmen embodies a major archaeological heritage of Brittany. His study provided a better understanding of the funeral rites and social organization of Neolithic populations in the region. The successive excavations, documented in the bulletins of the Morbihan Polymathic Society, underline the scientific importance of the site, while revealing its role in the dense megalithic landscape of the Carnac area.

External links