Safed Koh
The Safēd Kōh (Dari: سلسله سفید کوه, romanized: Silsilah-yi Safed Koh) or Spīn Ghar (Pashto: سپین غر) is a mountain range to the south of the Hindu Kush. It stretches from eastern Afghanistan to Khyber Pakhtunkhwa, Pakistan, and forms a natural border between the two countries.