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Origin and history

The necropolis of Bois des Géantes, located in Bourg-Saint-Andéol en Ardèche, is a megalithic funeral site composed of six dolmens spread over 750 metres. These structures, erected between 3000-2900 and 2200 B.C., illustrate three architectural types: bas-rhodanian, caussenard and Languedocian. Their location, determined by a natural depression and a stony cluster, guaranteed stability and supply of materials.

The dolmens were first mentioned in 1837 by the Bonnefont surveyor, then studied by Jules Ollier de Marichard and Léopold Chiron in the 19th century. Ranked historic monuments in 1900 as "Dolmens of the Joyandes", they were initially seven, but only six were later identified. Their use extended from the final Neolithic to the Bronze Age, with traces of modern objects attesting to visits in the 19th and 20th centuries.

The excavations of the 20th and 21st centuries, including those from 2002 to 2013, revealed artifacts (bronze, pearls, bones) and allowed restoration. Dolmen No. 1, a Languedocian type, is distinguished by an antechamber and a funeral chamber of more than 10 m3, while the rest, of caussenard or bas-rhodanian types, have smaller vestibules and cellae. The site, combined with tumulus of varying sizes, shows collective funeral practices and continuous occupation over more than a thousand years.

The toponym "Bois des Géantes" (or variants such as "Joyandes" or "Jayandes") evokes local legends linked to giants, reflecting a popular interpretation of megaliths. The geological studies reveal a limestone substrate dated from the lower Cretaceous, while the dolmen architecture, adapted to this land, combines stability and funeral symbolism.

Archaeological research, from Bonnefont's early explorations to recent campaigns, has documented the funerary furniture (partitions, weapons, ceramics) and human remains. These discoveries underline the importance of the site in the context of the megalithism of the Midi de la France, marked by typological diversity and a multisecular occupation.

Today, the necropolis, owned by the commune, is subject to measures of preservation and recovery, especially since the restorations undertaken in the years 2010. Its classification as historical monuments and its integration into the ardèche heritage make it a major testimony of prehistoric funeral practices in Auvergne-Rhône-Alpes.

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