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. (March 21, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/aliakmon
"Aliákmon." The Columbia Encyclopedia, 6th ed.. . Retrieved March 21, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/aliakmon