The Ivindo River flows from northeast Gabon to the southwest, eventually emptying into the Ogoue River. It flows through some of the wildest and most attractive rainforest in Africa. The upper stretch of the river is fairly gentle, draining the gentle plateau of eastern Gabon. Below the town of Makokou, the only significant town on the river, it drops off the plateau in a series of spectacular waterfalls and gorges.
- Djoua, which is also a natural border between Gabon and Congo
- Djadie, also written Zadia, which flows across Mekambo
- Liboumba, whose main tributary is the Lodié River
- Mvoung, which flows across Ovan and main tributary is the Kuye River
The Ivindo below Makokou was first traversed by a whitewater expedition in 1998. This was a group from Jackson Hole, Wyoming, consisting of Chris Guier, Bruce Hayse, Louise Lasley, Marilyn Olsen, Rick Sievers and Howie Wolke. The group encountered four impressive falls: Kongue, Mingouli, Tsengue Leledei, and an unnamed and undescribed falls between Mingouli and Tsengue Leledei which was perhaps the most beautiful of all. There were many stretches of whitewater and the banks were remarkable for groups of unafraid elephants and occasional other mammals.
- The Trans-Gabon Railway has two bridges over the confluence between the Ivindo and the Ogowe Rivers.
- Much of the area around the Ivindo has received National Park status.
- National Geographic. 2003. African Adventure Atlas Pg 24,72. led by Sean Fraser
- Lerique Jacques. 1983. Hydrographie-Hydrologie. in Geographie et Cartographie du Gabon, Atlas Illustré led by The Ministère de l'Education Nationale de la Republique Gabonaise. Pg 14-15. Paris, France: Edicef.