The Cavalla River (also known as Cavally, Youbou or Diougou river) is a river in West Africa running from north of Mount Nimba in Guinea, through Côte d'Ivoire, to Zwedru in Liberia, and back to the border with Côte d'Ivoire. West Africa or Western Africa is the Westernmost Region of the African Continent. Mount Nimba is a Mountain along the border of Côte d'Ivoire, Liberia, and Guinea in West Africa. Guinea, officially Republic of Guinea (pronounced /ˈgɪni/ République de Guinée is a country in West Africa, formerly known as French Guinea Côte d'Ivoire (ˌkoʊt divˈwɑː(r ' in English, kot diˈvwaʀ in French) or Ivory Coast, officially the Republic of Côte d'Ivoire, is a Zwedru is the capital of Grand Gedeh County, one of the 15 counties in the West African country of Liberia. Liberia, officially the Republic of Liberia, is a country on the west coast of Africa, bordered by Sierra Leone, Guinea, Côte d'Ivoire It ends in the Gulf of Guinea 21 km east of Harper, Liberia. The Gulf of Guinea is the part of the Atlantic Ocean southwest of Africa. Harper, situated on Cape Palmas, is the capital of Maryland County in Liberia.
It has a length of 515 km. The name is derived from the cavalla horse mackerel found at its mouth. " Cavalla " is a vernacular name used for several Fish species in the families Carangidae and Scombridae: Crevalle jack Horse mackerel is the popular name of various large fishes such as the Tuna, and the Scad or saurel of the Pacific coast: Australian