- location Lake Urmia, Iran | Province West Azerbaijan Province | |
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The Simineh River (Persian: سیمّینه رود Sīmīneh Rūd, Sīmmīneh Rūd), also known as the Tatavi Chay (Tatāhū Čāy), is a river in northern Iran, that flows into the south end of Lake Urmia. It is just over 200 kilometres (124 mi) long and has a catchment basin (watershed) of 2,090 square kilometres (810 sq mi). Its waters are used primarily for agriculture and the return flow significantly degrades its water quality.
Like its twin the Zarineh River to the east, the Simineh arises in the Zagros Mountains of Kurdistan Province and flows north through West Azarbaijan Province. Unlike its twin, the Simineh has considerably less flow into Lake Urmia. Like the rest of the steams in the basin, the river has a seasonal variability in its flow rates, but during the spring run-off the river can discharge as much as 57,000 litres per second (15,000 US gal/s) into Lake Urmia.
The Simineh River flows just to the west of the city of Bukan, and provides some of their water.