"[Spoken in the] Logone-et-Chari department of the Far North province of Cameroon. Lagwan is the name of the language spoken by the Kotoko in Logone-Birni and the area north of Waza National Park, from the banks of the Logone River to the Nigerian border (Dieu et al 1983:93). Consequently, as well as being the language of a number of villages in Cameroon, the language area extends to a number of villages in Chad and one in Nigeria."