The only industrial vestige of the extraction of limestone in the Ile-de-France in the 19th century, it allowed to go up, from the underground quarry located at 35 m of depth, blocks of stone from 4 to 8 tons. It consists of two large stone piles on which rests a drum for winding the cable. The drum is driven by gears connected to a carousel on which a horse evolves to move the blocks. It ceased its activity at the beginning of the 20th century and was restored by the association PICAR member of the Union REMPART.
Guided tour: history of the exploitation of the building stone, method used for the extraction, demonstration of the tools used, operation of the winch with a horse, history of the restoration of the monument.