Aliákmon (älēäk´môn), longest river of Greece, c.200 mi (320 km) long, rising in the mountains near Lake Préspa, N Greece, and flowing SE then NE into the Thermaic Gulf. The river waters an agricultural region; Kastoría and Véroia are along its course. The Aliákmon forms the western portion of the extensive Vardar River delta. It is also known as the Vistrítsa River.
"Aliákmon." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 23, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/aliakmon
"Aliákmon." The Columbia Encyclopedia, 6th ed.. . Retrieved September 23, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/aliakmon