Cestos River

The Cestos River, also known as Nuon or Nipoué river, is a Liberian river that rises in the Nimba Range of Guinea and flows south along the Ivory Coast border, then south-west through tracts of Liberian rain forest to empty into a bay on the Atlantic Ocean where the town of Cestos is located. The pygmy hippopotamus is known to inhabit lands along stretches of the river. It forms the northern third of the international boundary between Liberia and Ivory Coast.
During the First Liberian Civil War, the portion of the river near the city of Cestos was a leading food and mineral extraction region for the National Patriotic Front of Liberia.