Location of Parc National du Niokolo Koba

The park lies in an upland region through which the upper stretch of the Gambia River flows, towards the northwestern border of Guinea. The Biosphere park itself covers some 9,130 square kilometres, in a great arc running from Upper Casamance/Kolda Region at the Guinea-Bissau border into the Tambacounda Region to within a hundred kilometers of the Guinean border near the southeast corner of Senegal. Its altitude ranges from 16m to as high as 311m