The Trois dolmens dans le tumulus de Rondossec lie on the Rue Hoche at the northern edge of the municipality of Plouharnel, near Carnac in the department of Morbihan. The site features a largely removed Cairn with a diameter of 20 meters. In 1849, researchers found two gold chains dating from around 2000 v. Chr. (BCE). The site has been a Monument historique since 1862.
The Westdolmen is a small megalithic structure missing its chamber stones, squeezed between the border stones of the Cairn and the central structure. It was likely the last to be created. The original Cairn consisted of the other two structures, which are approximately the same size.
The middle dolmen has a longer chamber, where the passage expands into a flask-shaped shape with a narrowed entrance. The third dolmen has a rectangular chamber with a small annex and an eleven-meter-long passage.
Most of the ceiling slabs are preserved, with some showing rectangular notches and signs of splitting. Besides the gold chains found there, the monument yielded classic Neolithic grave goods such as axes, flint, and vases. The nearby Dolmen de Cosquer also sits in the area.
Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons
Written by Nicolo Ciampini
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