Valle dei Mulini

Almost all the mills have a smaller tower or a tufa channel while the rest of the mill is made of limestone. This is because they were built in later periods of the medieval period. We know with certainty that the first constructions in tufo at Gragnano were built from the 17th century onwards and therefore also the additional towers are of the same period and also in all the mills there are two floors of millstone, of which the addition subsequently it was fed by the towers built in tufa.