Riotuerto (Rutuertu in Cantabrian) is one of the municipalities of Cantabria, lying between the North Coast of the Cantábrican Sea and the mountains of the Cantabrian Sierra. It is part of the ancient merindad (shire) of Trasmiera.
Riotuerto (also known as Rutuertu in regional language) is a town in Cantabria, situated on the coast and surrounded by the mountains of the Cantabrian Sierra. It has been under the jurisdiction of the ancient Trasmiera shire.