Ogooué River
In 1873–4, Antoine-Alfred Marche and Victor de Compiègne (the Marquis de Compiegné) explored the Ogooué River region. They arrived in Lopé in 1874 but encountered hostility from the Fang-Meke people at the mouth of the Ivindo. Pierre Savorgnan de Brazza similarly made excursion to the region in November 1875 and between 1879 and 1882.