Surag (Persian: سورگ, also Romanized as Sūrag and Soorag) is a village in Jolgeh-e Mazhan Rural District, Jolgeh-e Mazhan District, Khusf County, South Khorasan Province, Iran. At the 2006 census, its existence was noted, but its population was not reported.
Khusf (Persian: خوسف, also Romanized as Khūsf and Khoosaf) is a city in and the capital of Khusf County, in South Khorasan Province, Iran. At the 2006 census, its population was 3,186, in 929 families.