[1] The Cavally River has its headwaters in the Nimba Mountains in Guinea and forms the border between Ivory Coast and Liberia for over half its length.[1] It is joined by the Bagbé, Bafing, Nzo, Lobo, and Davo rivers and winds through shifting sandbars to form a narrow estuary, which is navigable for about eighty kilometers inland from the port of Sassandra.[1] This large river system drains most of central Ivory Coast before it flows into the Tagba Lagoon opposite Grand-Lahou.[1] It flows within a narrow 700-kilometer basin and receives the Kongo, and Iringou tributaries before winding among the coastal sandbars and emptying into the Ebrié Lagoon near Grand-Bassam.[1] These projects created reservoirs, now referred to as lakes bearing the names of the dams- -Buyo on the Sassandra, Kossou and Taabo on the Bandama, and Ayamé on the small Bia River in the southeast corner of the country.