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France halts construction to investigate ancient city

thecooldown.com · 12 September 2026
France halts construction to investigate ancient city
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Archaeologists in Tonnerre, France, stopped a home construction project after discovering the remains of a 2,000-year-old city beneath Montbellant Hill.

The French National Institute for Preventive Archaeological Research found evidence of buildings, workshops, and cellars dating back to the first century B.C.E., indicating a well-established community existed on the hillside before the Roman period. Artifacts like pottery and coins support the presence of people living in the area during the Iron Age.

The steepness of Montbellant Hill presented challenges for its inhabitants, who carefully organized their homes and workplaces within the limited space. Researchers identified a Gallic fortress and cellars from both pre-Roman and Roman eras, showing how later structures were built on top of or around older foundations. The site covers approximately 8,000 square feet and contains evidence of occupation for 1,500 years, stretching into the medieval period before activity decreased.

Currently, archaeologists are studying the findings from Tonnerre alongside discoveries from a 2024 excavation nearby. They hope to gain a better understanding of how urban areas developed over time, especially how people managed construction, storage, and limited land. The investigation may reveal new insights into the history of the region and the lives of those who lived on Montbellant Hill centuries ago.

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