Moulins souterrains du Col-des-Roches
Moulins souterrains du Col-des-Roches, Underground watermill and technology museum in Le Locle, Switzerland.
The Moulins souterrains du Col-des-Roches contains multiple levels of underground chambers where water-powered mechanisms demonstrate traditional milling techniques through guided visits.
These subterranean mills, constructed to harness mountain water flows, operated continuously from the 17th century until 1884, supplying flour to local communities.
The site represents Swiss engineering excellence through its complex system of vertical shafts and horizontal water wheels carved directly into the limestone rock.
Visitors can access the underground mills through guided tours available daily from March to November, with schedules posted at the entrance and online booking required.
The facility maintains functional reconstructions of original milling equipment, allowing demonstrations of grain processing methods in their authentic underground environment.
Location: Le Locle
Website: http://lesmoulins.ch
GPS coordinates: 47.04900,6.72136
Latest update: June 3, 2025 10:05
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