The Niger expedition of 1841 was mounted by British missionary and activist groups in 1841–1842, using three British iron steam vessels to travel to Lokoja, at the confluence of the Niger River and Benue River, in what is now Nigeria. The British government backed the effort to make treaties with the native peoples, introduce Christianity and promote increased trade. The crews of the boats suffered a high mortality from disease.

Lokoja is a city in Nigeria. It lies at the confluence of the Niger and Benue rivers and is the capital city of Kogi State. While the Yoruba (Oworo), Bassa Nge and Nupe are indigenous to the area, other ethnic groups of Nigeria, including the Kupa-Nupe, Hausa, Ebira, Igala, Igbo, Bini/Edo, and Tiv have recently established themselves. Projected to be the third fastest growing African continent city between 2020 and 2025, with a 5.93% growth. It was listed a second class township by the 1917 township ordinance of the colonial administration. This shows that Lokoja is an old city.