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Heritage classified

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Origin and history

Rondossec's tumulus is a megalithic monument of the Neolithic region located in Plouharnel, Morbihan, England. It consists of three corridor dolmens, whose entrances are oriented south/southeast. Discovered in 1849 by carriagemen, it was searched the same year by L. Bail, a sailor and coffee maker. The ensemble was classified as historical monuments in 1862 and restored in 1920 by Z. Le Rouzic.

The central dolmen, of elongated shape, is 4.70 m long for a width of 2.70 m, with a corridor of 8.10 m covered with five slabs. The second dolmen, to the northeast, has a 10.50 m corridor and a sub-rectangular room with a side cell. The third, smaller, is adjacent to the central dolmen and has a corridor of 4.70 m. These structures illustrate neolithic funeral architecture.

The archaeological furniture discovered includes polished axes, a point of arrow, flints of flint, ceramic teasses, and two gold bracelets dated from the Chalcolithic, preserved at the National Archaeology Museum and the Museum of Prehistory of Carnac. These objects bear witness to funeral practices and cultural exchanges of the time.

The circular tumulus is a remarkable example of Breton megalithic architecture. Its early ranking in 1862 underlined its heritage importance. The restoration of 1920 by Z. Le Rouzic allowed its preservation, offering today a tangible testimony of neolithic societies.

Gold bracelets, comparable to Spanish gargantillas, suggest cultural or commercial links between Brittany and other European regions. Their discovery in a black earth vase, in the room of the central dolmen, indicates a secondary deposit, probably ritual.

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