It stretches from the Gulf of Guinea in the southwest to Lake Chad in the northeast
... will prevail over Lake Victoria region and stretching southwestwards ... 
northern Congo Basin region, eastern Chad, southern Sudan and ... the western 
Gulf of Guinea states, northern Kenya and over eastern Somalia... [DOC] [TLE] cameroon; pasture forage country profiles; fao [PAR] ... the Gulf of Guinea, between longitudes 8 and 16 East and latitudes 1 and 13
 North.