Medieval Bridge of Frías

One of the most valuable monuments of the city of Frias is its bridge over the Ebro. It can be said that its origin was of Roman construction and rebuilt several times in the Middle Ages. It passes through it, the Roman road, which was a means of communication, very important for trade between the Plateau and the Cantabrian coast. It came through the Portillo de Busto, Tobera, Frías, passes through the Herrán gorge and reached Orduña, from where the merchants went to Bilbao.