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Heritage classified

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Origin and history

The mound of the Rock in Bono, classified as Historic Monument since 1928, is a prehistoric funerary site located at the place called Le Rocher, in the municipality of Bono (Morbihan). It is a collective burial under a tumular terrace, housing a covered L-shaped dolmen, 18 metres long. This structure is composed of 36 stones supporting 14 tables, some of which carry engravings representing an octopus or morgate, symbol of a maritime tribe. This dolmen, dating from the late XLth century BC, served as a common burial, reflecting neolithic funeral practices.

Around the main tumulus, six circular burials called tombs were identified, dating from the Iron Age (15th century BC). These tombs delivered 24 bronze bracelets, some of which are now on display at the Museum of Prehistory in Carnac. The site thus illustrates a continuous funeral occupation over several millennia, marking the evolution of rites and societies in Brittany.

The tumulus is owned by the Morbihan department and its ranking among the Historical Monuments dates back to 1900 for the dolmen (cadastre AT 25). Although its administrative address is associated with Plougoumelen (code Insee 56167), its precise location is located near the place called Le Paluden in the municipality of Bono. The available sources (Wikipedia, Monumentum) underline its archaeological importance, particularly for the study of Breton megalithic cultures.

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