Crna River (Vardar)

Crna River (, "Black River") is a river in North Macedonia. It is the right tributary of the Vardar River. It runs through much of the south and west of the country. Its source is in the mountains of western Macedonia, northwest of Demir Hisar.
It enters the Pelagonia valley at the village of Buchin and then flows through the village Sopotnica, and southwards through the plains east of Bitola. At Brod (Novaci Municipality) it turns northeast. It leaves the Pelagonia valley at the Staravina village and goes in the biggest canyon in Macedonia, the Skočivir valley and flows into the Vardar river between Rosoman and Gradsko.
Thus, the river makes a bend of almost 180 degrees east of Bitola. This bend was part of the Macedonian front in World War I. It was known to the allied forces as the "Cerna Bend" or "Cerna Loop", and two major battles were fought here: the Battle of the Cerna Bend (1916) and the Battle of the Crna Bend (1917).
The name "Crna Reka" means "Black River" in Macedonian, a translation of its earlier Thracian name, Erigon (), meaning "black", akin to Greek "érebos", "darkness"; Armenian "erek", "evening"; Old Norse "røkkr", "darkness"; Gothic "riqis", "darkness"; Sanskrit "rájas", "night"; and Tocharian B "orkamo", "dark".
The Erigon river is mentioned by Arrian in the Anabasis of Alexander, Livy in the History of Rome Strabo in the Geographica, Athenaeus in the Deipnosophistae.