Haliacmon

The Haliacmon (Greek: Αλιάκμονας, Aliákmonas; formerly: Ἁλιάκμων, Aliákmon or Haliákmōn) is the longest river of Greece, flowing entirely on Greek soil in the region of Macedonia, with a total length of 297 km (185 mi). In Greece there are three rivers longer than Haliacmon: Evros (Greek: Έβρος), Strymonas (Greek: Στρυμόνας), both coming from Bulgaria, and Axios (Greek: Αξιός) coming from North Macedonia, but the length of each one of them in Greek territory is less than that of Haliacmon, which flows entirely in Greece. Haliacmon is the traditional English name for the river, but many sources cite the formerly official Katharevousa version of the name, Aliákmon. Today, the only official variant is the demoticAliákmonas. It flows through the Greek regions of Western Macedonia (Kastoria, Grevena and Kozani regional units) and Central Macedonia (Imathia and Pieria regional units). Its drainage basin is 8,813 km (3,403 sq mi).