District of Mosul
Kirkuk sub-District (Sanjak):
There were five small districts (kazak): Erbil, Kirkuk, Kiosanjaq, Rania, and Rawandoz
Mosul sub-District (Sanjak):
There were seven small discticts (kaza): Amadia, Aqra, Duhok, Mosul, Sinjar, Telafar, and Zakho
Sulaymaniyah sub-District (Sanjak):
There were five small discricts (kazak): Bazian, Kalanbar, Ma'amora, Shahervazar, and Sulaymaniyah
Map of Mosul Vilayat at the end of 19th century during the last period of the Ottoman rule