Thyamis or Kalamas is the largest river of Epirus and the seventh largest in Greece. Thyamis is its ancient name, while Kalamas was formerly called its largest tributary, but over time the two names became identical.


Thyamis or Kalamas is the largest river of Epirus and the seventh largest in Greece. Thyamis is its ancient name, while Kalamas was formerly called its largest tributary, but over time the two names became identical.