Acquarossa is the capital of the district of Blenio in the canton of Ticino in Switzerland.  The municipality was created on 4 April 2004 by a merger of Castro, Corzoneso, Dongio, Largario, Leontica, Lottigna, Ponto Valentino and Prugiasco. The village Acquarossa was located in Lottigna. The name of the new community was selected from the one located at its centre: Aquarossa, a tourist resort. Acquarossa is located in the Blenio Valley. The surrounding communities are, starting North, following the hands of a watch: Olivone, Aquila, Torre, Malvaglia and Ludiano, as well as Sobrio, Cavagnago, Anzonico and Faido in the district of the Leventina. Well above Prugiasco one can visit the Roman church San Carlo di Negrentino (up to 1702: cant "Sant' Ambrogio"), erected in 11th, it was completed in 12th. Roman and Gothic frescoes can be admired. Watchmaking workshops and small watch companies, e.g. Adriatica in Dongio, provide jobs to a good part of the population.