The Pioverna is a torrente (a stream whose flow is subject to a high level of seasonal variation) of Lombardy in northern Italy. The stream is born in the Grigna massif and flows north and west through the Valsassina, forming a gorge at Bellano before entering Lake Como. The entire course of the stream falls within the Province of LeccoThe torrent, home to brown trout, rainbow trout and European bullhead, is a favourite of anglers.