Construction phases -906 à -814 (≈ 860 av. J.-C.)
28 dates of felling of identified timber
Xe-IXe siècles av. J.-C.
Period of occupancy
Period of occupancy Xe-IXe siècles av. J.-C. (≈ 851 av. J.-C.)
Lake habitat and wooden structures
XIXe siècle
Site discovery
Site discovery XIXe siècle (≈ 1865)
First identification of submerged remains
2006-2009
Survey campaigns
Survey campaigns 2006-2009 (≈ 2008)
In-depth archaeological research and analysis
24 octobre 2011
Historical Monument
Historical Monument 24 octobre 2011 (≈ 2011)
Official protection of the underwater site
Aujourd'hui
Aujourd'hui
Aujourd'hui Aujourd'hui (≈ 2025)
Position de référence.
Heritage classified
The archaeological site immersed in the lake off the banks of the town of Chindrieux, in total (Box Z, not cadastre) and located around a central point X 873.145; Y 2094.710; Z 228.02 (- 3.40) coordinates Lambert II extended, corresponding to a surface of piles of 100 m. x 90 m., according to the plan annexed to the decree: classification by order of 24 October 2011
Key figures
Information non disponible - No character cited
The source text does not mention any historical actors
Origin and history
The archaeological site of Châtillon, immersed in Lake Bourget near Chindrieux (Savoie), is an emblematic example of the lakeside cities of the final bronze age. These remains, dating back to the Xth-IXth century BC, include wooden support piles and traces of human habitat in a wetland. Their study sheds light on the prehistoric occupation of lake areas, a phenomenon widespread in Europe during this period.
Discovered in the 19th century, the site was subjected to extensive archaeological surveys between 2006 and 2009. A dendrochronological analysis revealed 28 distinct wood cutting phases, dating precisely from constructions between -906 and -814. These data confirm an intense and recent occupation in the final bronze, with frequent reconstructions over a short period of time.
Ranked Historic Monument by order of 24 October 2011, the site covers an area of 100 m by 90 m, marked by piles still visible. These remains illustrate stilt construction techniques and the adaptation of prehistoric communities to aquatic environments. Their preservation under water offers an exceptional testimony of everyday life and architecture of the time.
The location of the site, off the banks of Chindrieux, makes it a key element of the underwater heritage of the Auvergne-Rhône-Alpes region. Although its geographical accuracy is deemed to be satisfactory (level 6/10), its access and visit remain subject to constraints related to its immersion. Current studies continue to enrich knowledge about the final bronze societies in Savoie.
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