Change Language:
scattered clouds
Humidity: 34%
Clouds: 40%

Aliakmonas river, crosses a large part of Northern Greece and it ends finally at the Thermaikos Gulf. Apart from the enormous ecological value, Aliakmonas is very important because the abundant water supplies large hydropower stations.



Aliakmonas river is the longest river that flows exclusively on Greek soil. Its length reaches the 300 km. Aliakmonas is formed by the confluence of smaller streams southwest of the city of Kastoria. Aliakmonas flows southeast, crosses the basin of Grevena, then it bends to the northeast, it traces over the southern border of the prefecture of Kozani where it forms an artificial lake (Polyfytos lake) and it enters Imathia. After crossing the plains of the county it turns again direction and it ends at the Thermaikos gulf where it forms a small delta. The main tributaries of Aliakmonas river are  Voda, Venetikos, Doupiakos, Stravopotamos and Tripotamos.

The rich sediments that are transported by Aliakmonas from the mountains of the northern Greece have resulted an increase of the plain of Thessaloniki. In contrast, Thermaikos gulf continuously decreases. A typical example is the ancient palace of Vergina, where at the time of Alexander the Great was closer to the coastline.


According to Greek mythology, Aliakmonas, son of Oceanus and Tethys, was one of the river gods. Another mythological source says that his parents were Palestininos (king of Thrace) and Pieris.



Although Aliakmonas delta is relatively small in size, it is a wetland of great ecological value that hosts many species of aquatic birds. More than 200 species of birds have been observed such as ducks, pelicans, herons, etc. The biodiversity of the ecosystem increases with the seasonal influx of migratory species.

The delta of the river is important for mussels and salt production. All along the river have been identified more than 30 species of fish such as  carp, trout, eels and many others.

© photo
© photo
© photo