nigeria
MUNGO PARK discovered the mouth of river Niger
Great Britain controlled the area around the mouth of the Niger River when Nigeria was a part of the British Empire. Since 1960, the Niger Delta has been under control of the Federal Republic of Nigeria.
The civilization located at the mouth of the Niger River was the Kingdom of Benin. It was a powerful and wealthy kingdom in West Africa known for its advanced artistic, technological, and political achievements.
britain
The River Benue has it's source in Cameroon and flows west into the River Niger in Nigeria
It discharges into the Gulf of Guinea through a massive delta known as the Niger Delta of the Oil Rivers.
The Netherlands.
Russia
Mozambique
The Mouth Of the River
Argentina.