Darj-e Sofla
 Darj-e Sofla (Persian: دارج سفلي‎ also Romanized as Dārj-e Soflá and Dāraj-e Soflá; also known as Dārīj-e Pā’īn Dāraj-e Pā’īn Dārj Pā’īn and Qal‘eh Dārīj Pāīn) is a village in Zirkuh Rural District Central District Zirkuh County South Khorasan Province Iran. At the 2006 census its population was 105 in 25 families.