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With the break out of Iran-Iraq war in 1980, the fields around the Chahar Taq were bulldozed for use by the Iranian military. Some bulldozed debris was piled on top of the previously exposed archaeological remains. With termination of the hostilities, when the military left the region, the flat area around the Chahar Taq became attractive place for the villagers of old Zardeh to build new homes.
References
Chahar Taq can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3057376" in the "Unique Feature Id" form, and clicking on "Search Database".