The main river in Gabon, Ogooue River, arcs across the entire country, with major tributaries including Ivindo and Mpassa. Its mouth is at Port Gentil, on the Atlantic Coast, and it originates in the Republic of the Congo.
Politics of Gabon takes place in a framework of a republic whereby the President of Gabon is head of state and in effect, also the head of government, since he appoints the prime minister and his cabinet.
Gabon is divided into nine provinces, which they are further subdivided into 50 departments. The president appoints the provincial governors, the prefects, and the subprefects.