Or (river)

Or
Mouth location in Russia
Location
Country	Russia, Kazakhstan
Physical characteristics
Mouth	Ural
• location	Orsk
• coordinates	51.1856°N 58.5411°E / 51.1856; 58.5411
Length	332 km (206 mi)
Basin size	18,600 km^2 (7,200 sq mi)
Basin features
Progression	Ural→ Caspian Sea

The Or (Russian: Орь, Kazakh: Ор) is a river in Orenburg Oblast of Russia and Aktobe Province of Kazakhstan. It is a left tributary of the Ural, and is 332 km long, with a drainage basin of 18 600 km^2.[1] The river is formed by the confluence of the rivers Shiyli and Terisbutak,[2] which have their sources on the western slopes of the Mugodzhar Hills, and it joins the Ural by the city of Orsk. Most of its discharge are from melting snow. The average discharge, 61 km from its mouth, is 21.3 m^3/sek. The spring flooding lasts from April to mid-May. The rest of the year the waterlevel is very low. The river freezes in late October and is icebound until March – April. The river is used for irrigation and water supply.

References

1. "Поиск по данным государственного водного реестра" (in Russian). State Water Register. 29 March 2009. Retrieved 27 March 2020.
2. Prokhorov, Alexander, ed. (1969–1978). "Or". Great Soviet Encyclopedia (in Russian). Vol. 30 (3rd ed.). Moscow.