
Moulin Tosset, located in Griselles (Loiret), is a Renaissance château built in the 16th century. The monument is currently closed to visitors.
The Tosset mill in Griselles is a listed milling remnant, with a working metal bucket wheel that bears rare witness to 15th-century milling in Loirétaine.

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In the heart of the Gâtinais region, in the commune of Griselles in the Loiret, the Tosset Mill stands out as one of the rare authentic examples of medieval hydraulic milling still standing in the Centre-Val de Loire region. Listed as a Historic Monument since 1991, its composite silhouette tells the story, stone by stone, of five centuries of almost uninterrupted milling activity. What makes this mill truly unique is the coexistence of three clearly legible architectural sequences: a southern section that forms the original core of the building, a central section with characteristic 15th-century chimneys, and a northern wing that was probably added at the end of the 19th century, when mechanisation forced traditional mills to expand or disappear. This stratification of the building makes the Tosset Mill a veritable history book on the evolution of milling techniques. There's a big surprise in store for visitors: the metal bucket wheel on the outside of the building is still in working order. This detail, rare for a rural mill in the Gâtinais region, gives the site a living dimension that museographic reconstructions cannot match. Watching this forged wheel turn, hearing the water lapping against the troughs, is a way of reconnecting with a centuries-old industrial tradition. The green setting, typical of the bocage gâtinais region, envelops the mill in a peaceful, photogenic atmosphere. Lovers of rural heritage, photographers in search of watery reflections and families wanting to introduce their youngsters to the history of the trades of yesteryear will find this a memorable stop-off, far from the tourist hustle and bustle of the major sites along the Loire.
The Tosset Mill has a composite massing in three distinct parts, reflecting the successive construction phases from the 15th to the 19th century. The central section, which is probably the most representative of the medieval period, features chimneys with hoods and mantles typical of the late Middle Ages, built from limestone quarried in the Gâtinais. The southern part, which is the mill itself, contains the technical equipment used to process the grain. The north wing, which is more sober and functional, reflects the rural construction standards of the late 19th century. The most remarkable technical feature is the bucket wheel, installed outside the building with no protective cover. This metal wheel, a feature of the modernisation that probably took place in the 19th century to replace the original wooden wheel, operates on the principle of an overhead or underhead wheel, depending on the height of the available waterfall. The troughs, a kind of metal bucket fixed to the periphery, collect the water and transform the hydraulic energy into rotary motion. Inside, the gears on the ground floor - spinning wheel, lantern and bed shaft - transmitted this movement to the millstones upstairs. The mechanical assembly is described as being in working order, which is a rare heritage item of inestimable educational and documentary value for the history of milling techniques.
Moulin Tosset is located in Griselles, Loiret department, Centre-Val de Loire region, France.
Moulin Tosset dates back to a period built during the Renaissance (16th century).
Moulin Tosset is currently closed to visitors.