The Zarrineh River flows northward and is dammed at Sadd-e Kurosh-e Kabir (Dam of Cyrus the Great) at the border with West Azarbaijan, producing a large reservoir. There is a power plant there. The river continues north and slightly west past the cities of Shahin Dezh, Kashavar and Miandoab and into Lake Urmia. Although it is perennial, unlike many of the streams in the Urmia Basin, its flow is still markedly seasonal with a discharge into Lake Urmia ranging from 500 cubic metres (0.41 acre·ft) per second to only 10 cubic metres (0.0081 acre·ft) per second at the end of the dry season.
^ abKarimi, Sata Shaeri; Yasi, Mehdi; Cox, Jonathan Peter & Eslamian, Saeid (2014). "5.3 Case Study: Typical Rivers in Urmia Lake Basin, Iran". In Eslamian, Saeid. Handbook of Engineering Hydrology: Environmental Hydrology and Water Management. Boca Raton, Florida: CRC Press. p. 89. ISBN978-1-4665-5249-4.