{{Short description|River in Iran}} The '''Khersan River''' ({{langx|fa|خرسان}}) is a 180km long tributary of the Karun River in Iran (the river with the largest flows in Iran), flowing into an arm of the reservoir formed by the Karun-3 Dam. The Khersan-3 Dam is under construction, proposed to be the most upstream of a cascade of three dams.<ref>{{cite web|title=Khersan-3 Project Information |url=http://en.iwpco.ir/Khersan3/default.aspx |publisher=Iran Water and Power Resources Development Co. |accessdate=6 June 2013 |url-status=dead |archiveurl=https://web.archive.org/web/20130714115238/http://en.iwpco.ir/Khersan3/default.aspx |archivedate=14 July 2013 }}</ref>
The region is mountainous, part of the Zagros Mountains. The river flows through Lordegan County (Chaharmahal and Bakhtiari Province), Semirom County (Isfahan Province), Boyer-Ahmad County and Dana County (Kohgiluyeh and Boyer-Ahmad Province).
As the site of a major dam, the area is a common research area, for example in terms of geology,<ref>{{cite journal |last1=Karimi |first1=Hossain |last2=Keshavarz |first2=Toraj |last3=Mohammadi |first3=Zargham |last4=Raeisi |first4=Ezzatollah |title=Potential leakage at the Khersan 3 Dam Site, Iran: a hydrogeological approach |journal=Bulletin of Engineering Geology and the Environment |date=20 December 2006 |volume=66 |issue=3 |pages=269–278 |doi=10.1007/s10064-006-0079-5}}</ref> archaeological value,<ref>{{cite journal |last1=GHASEMI |first1=Parsa |last2=WATSON |first2=Greg |title=The Khersan 3 Archaeological Survey |journal=Ancient Near Eastern Studies |date=2014 |doi=10.2143/ANES.51.0.3038718}}</ref> and management conditions under climate change <ref>{{cite journal |last1=Jahandideh-Tehrani |first1=Mahsa |last2=Bozorg Haddad |first2=Omid |last3=Loáiciga |first3=Hugo A. |title=Hydropower Reservoir Management Under Climate Change: The Karoon Reservoir System |journal=Water Resources Management |date=2014 |volume=29 |issue=3 |pages=749–770 |doi=10.1007/s11269-014-0840-7 |hdl=10072/402594 }}</ref>
== References == {{reflist}}
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{{coord missing|Iran}}
Category:Rivers of Iran