Abuja forest-savanna mosaic zone of the West African sub-region. Patches of rain forest, however, occur in the Gwagwa plains, especially in the rugged terrain to the southeastern parts of the territory, where a landscape of gullies and rough terrain is found. These areas of the Federal Capital Territory (FCT) form one of the few surviving occurrences of the mature forest vegetation in Nigeria. Abuja city is run by the Abuja Municipal Area Council. In addition to the civic administration the city is the location for the federal government of Nigeria, and likewise the Federal Capital Territory Administration which is responsible for
Abuja at least 35%, retaining its position as the fastest-growing city on the African continent and one of the fastest-growing in the world. Abuja has witnessed a huge influx of people into the city; the growth has led to the emergence of satellite towns, such as Karu Urban Area, Suleja, Gwagwalada, Lugbe, Kuje and smaller settlements towards which the planned city is sprawling. The urban agglomeration centred upon Abuja had a population estimated at 2,440,000 in 2014. The metropolitan area of Abuja was estimated in 2016 as six million persons, the country's second most populous metro area. The city has a