Mopti region: Tenenkou circle, northwest of Kouakourou town on Niger river; confluence of Diaka and Niger rivers; upriver into Ségou region: Machina circle.
5 (Developing). Recognized language (1982, Decree No. 159 of 19 July, Article 1).
Latin script [Latn].
Ethnic autonym: Boso, house of bamboo in Bambara. Muslim.