Gerdian is a village in Khezel-e Sharqi Rural District, Khezel District, Nahavand County, Hamadan Province, Iran. At the 2006 census, its population was 602, in 145 families.
Wikipedia https://en.wikipedia.org/wiki/Gerdian,_Hamadan
Coordinates 34°19'34.36" N 48°3'14.846" E