Cavalciotto is a fishing post located in Santa Lucia dating back to the 11^th century and represents one of the most important examples of industrial archeology in our territory. It is a fundamental component of the complex water system of Prato, consisting of 53 km of gores that starting from there cross the whole territory of Prato and then throw in the Ombrone river. The main function of Cavalciotto was therefore to divert the natural course of Bisenzio river to give rise to the so-called Gorone, the first and largest millpond of Prato. Originally this complex hydraulic system was probably born to reclaim the vast swampy plain, which developed south of the center of Prato. Over the years it was consolidated and used for drainage purposes, including irrigation, defense and above all as hydraulic energy capable of operating 58 mills, then over the centuries, for other productive activities such as metallurgical, in the field of paper, and especially textiles.