Stirone

The Stirone is a small river of Emilia-Romagna in northern Italy, a left tributary of the Taro, which it joins shortly before the latter enters the Po.

The sources of the river are on the slopes of and . Part of the course of the river forms the boundary between the provinces of Piacenza and Parma. It then forms the basis of the , which is especially known for its fossils, and reaches the town of Fidenza. The river joins the Taro at Fontanelle, a frazione of Roccabianca.

According to tradition, Domninus of Fidenza was martyred on its banks in 304 AD.