title: Siah Darreh, South Khorasan
text: # Siah Darreh, South Khorasan
  
  Siah Darreh (Persian: سياه دره, also Romanized as Sīāh Darreh and Siyah Darreh) is a village in Naharjan Rural District, Mud District, Sarbisheh County, South Khorasan Province, Iran. At the 2006 census, its population was 57, in 22 families.
  
  