Montecatini Terme
The area is made up of 11 comuni: Buggiano, Chiesina Uzzanese, Larciano, Lamporecchio, Massa e Cozzile, Monsummano Terme, Montecatini Terme, Pescia, Pieve a Nievole, Ponte Buggianese, and Uzzano, and has a population of almost 120,000. Parts of the comuni of Altopascio, Montecarlo, Marliana, and Serravalle Pistoiese are as well geographically part of the valley.