Logone River
The Central African Republic (CAR) contains the sources of the Chari and Logone rivers, which flow north into the lake. The volume of water entering Chad annually from the CAR has fallen from about before the 1970s to in the 1980s. A further to of water annually flows from Cameroon into Chad via the Logone River. The Chari-Logone system accounts for about 95% of the water entering Lake Chad.