Landforms of Isfahan province

300px|thumb|Map of the Zayandeh river and the Zayandeh/Gavkhouni drainage basin thumb|right|The Origin of Zayanderud, Koohrang tunnel extracts water from inside the Zagros Mountains. 300px|thumb|Zayanderud, summer 2015 thumb|Zayanderuz, summer 2018 thumb|Zayanderud, 2018 The Zayanderud or Zayandehrud (; from "fertile" or "life-giver", and "river"), also spelled as Zayanderud or Zayanderood, ..., is the largest river of the Iranian Plateau in central Iran.

thumb|right|250px|Topography of Iran thumb|250px|Dena Range as seen from South West

300px|thumb|Map of the Zayandeh/Gavkhouni drainage basin Gavkhouni () also written as Batlaq-e-Gavkhuni, located in the Iranian Plateau in central Iran, east of the city of Isfahan, is the terminal basin of the Zayandeh River. Gavkhouni is a salt marsh with a salinity of 31.5% and an average depth of about 1 m. The salt marsh can dry up in summer. The Zayandeh River originates in the Zagros mountains, and travels around 300 km, before terminating in Gavkhouni.

mountain in Isfahan, Iran

Ghar-e-Pariyan is a cave near Isfahan. It is situated at an altitude of 2967 m above sea level. Its entrance measures approximately 1.6 x 1.2 meters. It is located in Iran, not Iraq. Its coordinates are "".

cave and archaeological site in Iran