Qala Wust"qala/kala/etc. means "fort", stronghold" in Iranian languages (name variants: Kala Wust, Ūst, Qal‘ah-ye Ūst (BGN standard), Qal‘a-i-Ūst, Qala Ust, Qala Yost, Qal‘eh-ye Vost (one has to enter the search term)) is a mountain village in the Wakhan region of the Badakhshan Province, north-eastern Afghanistan.
Qala Wust is a settlement of Tajik highlanders."Himalaje-Karakorum", by Kazimierz Saysse-Tobiczyk, 138, 148
The village gave names to the Qala Wust Valley,The American Alpine Journal, Volume 15, p. 220 The Himalayan journal, Volume 32, p. 48 Qala Wust Gneiss formation,Geology of Central Badakhshan and Surrounding Countries, 1975, Istituto di Geologia, Universita de Milano (Italy), p. 300 and made a former name (Koh-i Qala-i Ust; koh-i means "mountain of") of the Kohanha massif.
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