Forges de Buffon
Just 7 km north of Montbard on the D905, the Forges de Buffon is an extraordinary 18th-century iron foundry that Buffon himself commissioned in 1768 — a grand neoclassical complex built beside the River Brenne to harness its waterpower. It looks more like a country palace than a factory.
A Factory Dressed as a Château
Buffon was as obsessed with industry as he was with nature, and the Forges reflect that ambition. The buildings are arranged around a formal courtyard with a monumental gateway, symmetrical workshops and a manager's house that would not look out of place in the Loire Valley.
The hydraulic system that powered the bellows and hammers has been partially restored, and you can see the original water channels, wheel pits and furnace chambers. It's a remarkably complete survival — most comparable sites were demolished during industrialisation.
Visiting Today
The Forges are classified as a Monument Historique and open for guided visits in summer. The guides do an excellent job of explaining how pig iron was smelted here and shipped down the canal to Paris for Buffon's scientific experiments — including the famous tests on the age of the Earth using cooling iron balls.
The surrounding riverside setting is beautiful: willows trail in the Brenne, and there's a picnic area in the old courtyard where you can eat lunch after the tour with an almost surreal sense of calm in what was once a roaring industrial site.
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