 The base borders Guinea-Bissau and Senegal to the north, and Mali to the north and north-east; the inland part borders Côte d'Ivoire to the south-east, Liberia to the south, and Sierra Leone to the west of the southern tip.Its water sources include the Niger, Senegal, and Gambia rivers.Guinea is sometimes called Guinea-Conakry (Conakry being its capital) to differentiate it from the neighboring Guinea-Bissau (whose capital is Bissau).