 Upstream of the Karifiguela Falls it is known locally as the Koba River.At it is joined from the right (west) by the Léraba River, whereafter it flows southeast and forms the border between Burkina Faso and Ivory Coast for some , before it enters Ivory Coast four kilometres southwest of the village of Balanfodougou.In Ivory Coast, it continues southeast, past the Comoé National Park, forming the border between its Zanzan District and Savanes District.