Tributaries of the Pineios

river in Thessaly, Greece

The Titarisios (, formerly Ξεριάς - Xerias) is a river in Thessaly, Greece. It is a major tributary of the Pineios. The river begins at the western slopes of Mount Olympus and flows southwest, then south. It leaves the mountains near the village Sykia, and turns east near the village Vlachogianni. It passes along the town Tyrnavos and flows into the Pineios near the village Rodia. The confluence is at 65 m above sea level. Its total length is 70 km, and for most of its length it contains water throughout the year.