Colle di Val d'Elsa or Colle Val d'Elsa is a town and comune in Tuscany, Italy, in the province of Siena.It has a population of c. 20,000. Its name means "Hill of Elsa Valley", where "Elsa" is the name of the river which crosses it.Today, Colle di Val d'Elsa is internationally renowned for the production of crystal glassware and art, largely produced in the industrial lower town.
