Sarantaporos (Epirus)
 The Sarantaporos (Greek: Σαραντάπορος) is a river in northwestern Greece and southern Albania. It is a right tributary of the river Vjosë (Aoos) which flows into the Adriatic Sea. Its length is 50 km (31 mi) of which the final approx. 10 km (6.2 mi) form the border between Greece and Albania. Its source is between the mountain ranges Gramos and Voio in the Kastoria regional unit.