Col-des-Roches - Mill Museum

Near La Chaux-de-Fonds at Col-des-Roches the underground river Bied was harnessed as far back as the 16th C. The mills built into the mountains processed flour, hemp and flax for 200 years before the water became necessary for the new electricity works. The mills were forgotten and fell into disrepair until they were restored in 1973 by a preservation society, with the aim of establishing the Musée National de la Meunerie.