Vatrenus (river)

natural · 30 BC – 2099 AD

This ancient river, identified with the modern Santerno, is one of many draining the northern slopes of the Appenines into the Po valley. Today, the Santerno eventually empties into the modern Reno, but in antiquity it flowed, possibly in multiple branches, further into the complex and now much-changed Padus (Po) delta.