Which preposition to use with ferghana

in Occurrences 1%

The greatest military success were the campaigns of General Li Kuang-li to Ferghana in 104 and 102 B.C.

on Occurrences 1%

SEMIRETCHINSK (758), a mountainous province of Asiatic Russia, stretches S. of Lake Balkash to East Turkestan and Ferghana on the S.; is traversed E. and W. by the lofty ranges of the Alatau and Tian-Shan Mountains; the vast bulk of the inhabitants are Kirghiz, and engaged in raising horses, camels, and sheep.

Which preposition to use with  ferghana