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Les forges, fréquemment associées aux fourneaux, permettaient la transformation de la fonte en fer et le façonnage d\u2019objets en fer. \n\nLes sites répertoriés dans cette donnée consistent soit en : \n- haut-fourneau de moulage (production de grosses pièces en fonte moulées dans le sol : canons, boulets, taques de foyers, croix,...), \n- haut-fourneau d\u2019affinage (où des gueuses destinées à être traitées dans une forge d\u2019affinerie étaient produites), \n - site d\u2019affinage (laminoir, platinerie, clouterie,\u2026) \n\nLes usages se modifiant au fil du temps, la donnée n\u2019apporte pas ce niveau de détail. Ces sites ont aussi parfois été reconvertis tout en maintenant la force motrice hydraulique, par exemple en moulin à farine ou à huile. \n\nChaque site (forge et/ou fourneau) est représenté par un point, dont le positionnement correspond approximativement au centre du site, le plus souvent en aval d\u2019un étang ou d\u2019un bief amenant l\u2019eau nécessaire à actionner le marteau (ou maka), ou bien le soufflet permettant d\u2019attiser les braises de charbon de bois. \n\nLa précision de la localisation est renseignée dans le champ « PREC_GEO» : 100 mètres lorsque le (groupe de) bâtiment(s) a pu être localisé, 1000 mètres lorsque seul le toponyme situe l\u2019endroit.\n\nPour tout complément d'information sur cette donnée, consultez http://geoportail.wallonie.be/catalogue/a5861d91-8473-411f-9c63-5876c10e15eb.html", "geometryType": "esriGeometryPoint", "sourceSpatialReference": { "wkid": 31370, "latestWkid": 31370, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, 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Cet usage s\u2019est perdu au milieu du 19e siècle, lorsque la sidérurgie s\u2019est industrialisée en utilisant la houille comme combustible. \n\nChaque aire de faulde est représentée par un point, dont le positionnement correspond approximativement au centroïde de la placette détectable sur la donnée Hillshade du levé lidar 2013-2014. 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