North Bank Division was 33.2 per cent as of 2003. The Gambia is the smallest country in Africa, with the width of the country never exceeding . It is bordered by the Atlantic Ocean on the west, while being surrounded by Senegal in all other directions. The Gambia River flows throughout the country and is the principal source of water and transport medium. The banks of the river have swampy beaches, while it has alluvial soil in all other parts, which is conducive for the growth of rice. Peanuts are the major cashcrop. The weather is usually warm and dry. The elevation of
Wildlife of the Gambia soils of laterite formations. The local tree species include silk cotton "(Bombax costatum)", dry-zone mahogany "(Khaya Senagalensis)" in deeper soil areas and African rosewood "(Guibourtia coleosperma)". Short grasses and shrubs are seen thinly spread in the Sahelian habitats. The gallery forests (moisture forests), unlike the rainforest, thrive on groundwater and are integral to savannas. It is a rare habitat found only in Abuko Nature Reserve, Pirang Forest Park and in some stretches of the Gambia River with different set of species with some degree of overlap with rainforests. Urban habitat consists of numerous villages. The open areas in between have