Rud-e Hasan-e Sofla

Rud-e Hasan-e Sofla (, also Romanized as Rūd-e Ḩasan-e Soflá and Rūd Ḩasan-e Soflá; also known as Kaleh Mar Sofla, Kalleh Mār, Kalleh Mār-e Pā’īn, and Kalleh Mār-e Soflá) is a village in Shaban Rural District, in the Central District of Nahavand County, Hamadan Province, Iran. At the 2006 census, its population was 73, in 20 families.