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Origin and history

The former Dommartin-le-Franc foundry, built in the first half of the 19th century, illustrates a local metallurgical tradition dating back at least to the 13th century. This blast furnace, located in the upper factory, is distinguished by its brick structure reinforced by a metallic mesh, a rare example of conservation for this time. It is part of an industrial complex including a mill, a floor casting hall, and a charcoal hall, all documented by a plan of 1837, probably established during the establishment.

The foundry operated on charcoal, a technique characteristic of the early stages of the industrial revolution in rural areas. Its inscription as a Historic Monument in 1986 (for the casting hall, blast furnace, mill and coal hall) underscores its heritage importance. The site, now privately owned, bears witness to the transition between medieval artisanal methods and industrial processes of the 19th century, in an area marked by its steel heritage.

Metallurgical activity in Dommartin-le-Franc, attested from the 13th century in the lower factory, continued uninterrupted until the contemporary era. This blast furnace, together with its auxiliary installations, offers a concrete overview of the techniques of production of cast iron before coke. Its "remarkably" preserved state of conservation makes it a case of study for the history of techniques, while its location in Haute-Marne (Grand Est) recalls the often unknown role of rural areas in the first French industrialization.

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