Dumbi
Dumbi belongs to the Lomami river country of the Democratic Republic of the Congo. The river rises in the south near Kamina, close to the divide between the Congo and Zambezi drainage systems, and runs north for roughly 1,280 kilometres. Its course lies west of the upper Congo and approximately parallel to that much larger river before the two finally meet at Isangi. This long northward alignment gives the Lomami its own corridor through forested country rather than making it a short local stream.
The upper course passes through Lubao and several other settlements before reaching Opala and Irema. Movement along the river was interrupted by rapids, and the lower river, flowing between low and densely wooded banks, was passable only in stretches.
The Lomami’s name belongs to several biological species, reflecting the river’s place in the natural history of the region. Its long, northward route ties southern hills, forest settlements and a major Congo confluence into one navigable and partly interrupted system, so that travel along it had to adapt to the conditions of each stretch.