the first and older source
Oskou named at inscription_ that is told is Shamsi Adad that it is Ashur king on
811-824 ( B.C ) in attach to sourth Orumieh pond from three hang mountion
(Oshkaya) of sky was told and tow inscriptions do cuments (Argishi avval)is one
of the Oratu king that on 773-779 years (B.C) on a stone was writen attack to
sorth Orumieh pond of capture the governor general of Oshkaya and oshkaya glen
is told and third sourth is Sargoon inscription .it is other one of the Ashur
kings that on 714 (B.C) at mountain flight(Aush)
-Sahand- of open fort and 115 town its around that catched fire and all
them are destroy is told .combination mean Oshkaya :
osh
mean same three and kaya=gaya
means a big stone .
in fact fort that was
build on the top of the mountain that there is three big cliffs ycleped
historical scientific of view ,this fort probably it is locate in the earth
north of Oskou .