page_title: Ferrier of Tannerre-en-Puisaye
section_title: Early Middle Ages
hierarchical_section_title: Ferrier of Tannerre-en-Puisaye / History / Antiquity and Middle Ages / Early Middle Ages
caption_attribution_description: English: The "ferrier", Tannerre-en-Puisaye, Yonne, Burgundy, France. One of the few remaining blocks of limestone and some of its mortar, that made the Motte-Champlay fort that used to stand in the ferrier in the Middle Ages. Français&#160;: Ferrier antique de Tannerre-en-Puisaye, Tannerre-en-Puisaye, Yonne, région Bourgogne, France. Un des rares blocs de pierre calcaire, avec du mortier d'époque, provenant du fort de la Motte-Champlay qui s'élevait dans le ferrier au Moyen Age
context_page_description: The ancient ferrier of Tannerre-en-Puisaye, located in the village of Tannerre-en-Puisaye in Burgundy, France, is a historic site used for mining and working of iron. The works date from the Gallic and Gallo-Roman times. It is one of two largest ferriers in France and one of the largest in Europe. Industrial exploitation of the site ceased when it was classed as French Heritage monument in 1982.
context_section_description: After the Romans left, mining and smelting activity notably decreased in the area. During early Middle Ages, small ferriers remained active around Saint-Fargeau as far as Lavau and to the north of Villiers-Saint-Benoit. However, the records mention 
  forging activities much more often than iron production. This decrease continued until the near-extinction of this activity towards the end of the High Middle Ages, leaving behind as the only visible remains these mounds of slag, the ferriers, that in Tannerre reached 15 metres (49 ft) high for the lowest and are mainly found in the northern part of the ferrier.
caption: Blocks of lime and mortar from the Motte-Champlay
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