Related Clues:
- Ubangi tributary
- African river
- Congo tributary
- Congo river
- River to the Ubangi
- Ubangi feeder
- Congo border river
- River of the Congo
- River to the Congo
- River in central Africa
- Central African river
- River of central Africa
- Pierced-lipped African
- One of two rivers forming the Ubangi
- Ubangi River tributary