The high mountain valley in the Hindu Kush is marked with Yasin Tehsil. Known as Babaye-i-Yasen or Worshigum in Khowar Language, Yasin is indeed a treasure of Gilgit. Although sparsely populated, Yasin was of strategic importance because it leads to a high mountain pass, to Yarkhun in Chitral, and then to Broghol Pass, the Wakhan Corridor of Afghanistan and into Tajikistan. Thus, Yasin could have formed an invasion route from Czarist Russia into British India.