The Gambia River is a major river in Africa running 1,130 km from Fouta Djallon plateau in north Guinea west ward to the Atlantic Ocean at the cityof Banjul. It is navigable about half of its length.
The river is known largely because of the Gambia, the smallest country in mainland Africa, consists of little more than the downstream half of the river and its two banks. From the Fouta Djallon , the river runs north west into the Timbcounda province of Senegal,qhere it flows through thr Parc National du Niokolokoba, thenis joined by the Nieri Ko and Koulountou before entering the Gambia at Fatoto.At this point the river runs generally west, but in a meandering course with a number of oxbows. Near tthe mouth of the river, near Juffure, is James Island, a place used in the slave trade which is now a UNESCO world heritage site.