The valley lies almost entirely in the Province of Parma, in the Emilia-Romagna region of Italy.
The Val di Taro is approximately 126 km long, and runs from south-west to north-east.
The source of the Taro is on Monte Penna, on the border between Emilia-Romagna and Liguria.
[1] The Val di Taro is traversed by the Via Francigena, the ancient road and pilgrim route from Canterbury to Rome, which follows the valley from Noceto to the Passo della Cisa.
Claudio Landi, Prince of Val di Taro, plotted with Giambattista Anguissola and Giammaria and Cammillo Scotti to assassinate Farnese, but the plot was discovered; Landi lost the Val di Taro, and the other conspirators lost their heads.