. . . "The Cavalla River (also known as the Cavally, the Youbou and the Diougou) is a river in West Africa running from north of Mont Nimba in Guinea, through C\u00F4te d'Ivoire, to Zwedru in Liberia, and back to the border with C\u00F4te d'Ivoire. It ends in the Gulf of Guinea 21 km (13 mi) east of Harper, Liberia. It forms the southern two-thirds of the international boundary between Liberia and C\u00F4te d'Ivoire.It has a length of 515 kilometers (320 mi), and is the longest river in Liberia."@en . . "515000.0"^^ . "Cavally, Youbou, Diougou" . "Cavalla River"@en . . . "0.0"^^ .