It is partially fed by the Yobe River, but primarily by the Chari River, and it separated into
 northern and southern basins by the Great Barrier.
Cities lying on this body of water include Bol and N'guigmi. When its water levels are high, its water is
 diverted through a string of basins called the Soro, and its water is also discharged into the Bodélé
 Depression. It is partially fed by the Yobe River, but primarily by the Chari River, and it separated into
 northern and southern basins by the Great Barrier. In the 1960s, there was a proposal to divert the Ubangi
 River into this lake to maintain its volume. For 10 points, name this shrinking lake which borders Niger,
 Nigeria, Cameroon, and its namesake country.
Cities lying on this body of water include Bol and N'guigmi.
Lake {Chad}