This windmill can be seen at "Les Trois Moulins" on the road towards Maché.
Built in 1830, it was fitted with a steam engine at the beginning of the 20th century, then converted into a flour mill in 1916.
Since it could no longer meet demand and was located far from the railway line, it was abandoned in 1933. It gradually fell into ruin, leaving only a tower covered in ivy and brambles.
It was Gabrielle Mignon, a descendant of the former owners, who donated it to the commune in 2002 and provided financial support for its restoration.
Today, although the wings are missing, the Beaulieu-sous-la-Roche mill has been restored to its former glory and can be visited during special public events, such as the European Heritage Days. It is also the starting point for the Sentier des Trois Moulins, one of eleven hiking trails around the commune.