Koku prefecture is the 20th prefecture of Frecia situated in Pronnikou province in Highlands region. This is the central province of Frecia and it's is the most mountainous and sparsely populated of all prefectures. Half of this prefecture is within parks. The capital of this prefecture is Gorsova and it is divided by 9 municiplaities. This prefecture was created in 1805 and the name of this prefecture comes from the name of Mount Koku. This mountain is the highest in Frecia and is 3580 meters high.