Timeline

Heritage classified

Key figures

Origin and history

The Moulin Bas de Walheim, located in the Haut-Rhin in the Grand Est region, is a water mill built in the 4th quarter of the 16th century, probably around 1589. It is one of the oldest preserved mills in Sundgau, an area that once had 186 mills. Powered by Ill water, it has been hydraulically developed to limit flooding and optimize its operation. Its architecture combines rubble and brick elements, with old chamfer windows and volute leave on the gables. Inside, the ground floor housed milling and presses, while the floor served as a miller's dwelling, where prisoners from the occupation remained graffiti.

Over the centuries, the mill has undergone several major changes. In the middle of the 19th century, four wheels with staggered blades were installed: three for the grain mill and one for a hemp mill and a nut press. In 1839, a fire partially damaged the structure, and in 1906 another fire destroyed the miller's home, rebuilt in 1908. During World War I, the oil press was destroyed and replaced in 1919 and 1947. The mill ceased milling after 1945, but the oil mill operated until 1970. During the Second World War, the buildings served as a place of detention under the occupation.

Ranked a historic monument since 1997, the Moulin Bas retains remarkable technical elements, such as its wheels, hopper, and hydraulic systems. Although its activity ceased in 1968, it remained in working order and has benefited from restorations since 1987. His story is related to the Harnist family, millers strengthened by the Duke of Mazarin, lord of Altkirch. Today, it illustrates both Alsatian pre-industrial engineering and the historical upheavals of the region, from world wars to technical adaptations of the 19th century.

The site also includes a two-storey house and a separate barn, reflecting the typical spatial organization of rural mills. The openings were redesigned in 1961, and the roof, partially renovated, retains its characteristic half croupes. The ancient attices, with their X-shaped braces, as well as the graffiti left by prisoners, add a heritage and memorial dimension to the place. Its inscription in historic monuments covers the entire building, including its technical installations and hydraulic systems.

External links