:''For the country, see
The Gambia.

The western portion of the Gambia River, seen from space. The line shows the border of the country The Gambia.
The 'Gambia River' is a major
river in
Africa, running 1,130 km (700 miles) from the
Fouta Djallon plateau in north
Guinea westward to the
Atlantic Ocean at the city of
Banjul. It is navigable for about half that length.
The river is known largely because of
The Gambia, the smallest country in mainland Africa, which consists of little more than the downstream half of the river and its two banks.
From the Fouta Djallon, the river runs northwest into the
Tambacounda province of
Senegal, where it flows through the
Parc National du Niokolo Koba, then is 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, and about 100 km from its mouth it gradually widens, to over 10 km wide where it meets the sea.
Near the mouth of the river, near
Juffure, is
James Island, a place used in the
slave trade which is now a
UNESCO World Heritage Site.
Connection to 'Roots'
According to
Alex Haley's novel '', the Gambia River provided one of the clues that helped him trace his American
family history back to Africa. The words "Kamby Bolongo" were among the few words that his family had passed down from generation to generation; he discovered that a ''bolongo'' was a "moving water" or "river" in the
Mandinka language, so he concluded that the phrase probably referred to the Gambia River. His theory was confirmed when he traveled to
Juffure, The Gambia, on the north bank of the river, and found that their oral family histories complemented his own. The Mandinka language does not have a /g/ phoneme, so the river is therefore pronounced "Kambiya" rather than "Gambia".