[1] The Gorgopotamos rises 4 km north of Pavliani and west of Koumaritsi in the Oiti mountains with two streams.

It passes under OSE's Athens-Thessaloniki railway line and through the village Gorgopotamos, where it enters the plains.

[2] The railway bridge over the river is famous for one of the biggest sabotage acts of World War II, "Operation Harling".

[3] Operation Harling was a British mission and 150 Greek partisans blew it up on 25 November 1942, cutting off German supplies being transported between Athens and Thessaloniki (mostly headed for Africa).

The engineer who designed and built the original bridge was an Italian immigrant and Gorgopotamos local by the name of Agostino Tacconi, who used clever engineering at the time utilising unique parts making the bridge difficult to reconstruct in a timely manner.