Zāyandeh River

The Zayandeh River is a significant river in Iran, primarily known for its role in the city of Isfahan. It flows through Isfahan, dividing the city, and is spanned by historic bridges, most notably the Si-o-Se Pol, a 17th-century arch bridge. The river is crucial for water supply in the region, though its flow has been significantly reduced in recent years due to diversion for agricultural and industrial use, leading to environmental concerns and protests. The Zayandeh River is not the Safid River, which is the longest river in northern Iran and flows into the Caspian Sea.12