The main river that flows through Iran is the Zayandeh River. This river originates in the Zagros Mountains and flows eastward through several cities, including Isfahan. The river is vital for agriculture and water supply in the region, supporting the local economy and providing irrigation for crops. However, water scarcity has become a pressing issue, affecting the river's flow and the surrounding ecosystems. Efforts to manage water resources sustainably are ongoing to address these environmental concerns and ensure access to water for communities relying on the Zayandeh.