Fria PrefectureFria is a prefecture located in the Boké Region of Guinea. The capital is Fria. The prefecture covers an area of.² and has a population of 96,527. It is the site of the first alumina factory in Africa.Sub-prefecturesThe prefecture is divided administratively into 4 sub-prefectures: Fria-Centre Baguinet Banguingny Tormelin