The Strona di Postua () is a long torrent in the Piedmont region of northwestern Italy.
Etymology The name Strona comes from storn or strom, celtic roots for "flowing waters" or "river".Comuni della Provincia di Biella, page 140; AA.VV, Nerosubianco edizioni, Cuneo 2005 Postua is a comune located in the valley formed by the Strona.
Geography The Strona di Postua starts in the Biellese Alps with two branches which meet at Alpe Aigra. It then flows from NW to SE reaching the village of Roncole and the inhabited part of its valley. After flanking Postua and Guardabosone it enters into the Valsessera and flows into the river Sessera near Crevacuore.Carta Tecnica Regionale raster 1:10.000 (vers.3.0) of Regione Piemonte - 2007
See also Alpi Biellesi
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