Le Cosquer tide mill

Le Cosquer is a tide mill located in Troguéry where the Jaudy river meets tidal waters. The building retains original equipment that millers once used to grind grain by capturing the energy of changing water levels.

The mill was built during centuries when tidal power was a common way to mill grain along Breton rivers. It received official protection status as a classified historical monument in 1999, recognizing its importance to French industrial heritage.

The structure reflects how coastal communities in Brittany developed practical solutions to harness natural forces for daily work. It shows the skills and knowledge passed down through generations of millers who worked with the tides.

The site is freely accessible and allows visitors to observe how tidal mills functioned by studying the working machinery and structures firsthand. The best time to understand the full operation is when water level changes are visible, giving a real sense of how the mill responded to natural rhythms.

The mill retains its original tidal mechanisms in working order, allowing visitors to see how water actually powered the grinding stones. This functioning system is rare among preserved mills of this type and makes the historical engineering immediately tangible.