Birbir River
The Birbir River of southwestern Ethiopia is a tributary of the Baro River, which it creates at its confluence with the Gebba. It is politically important because its course defines part of the boundary between the Mirab [Welega Zone|Mirab Welega] and Illubabor Zones of the Oromia Region. Richard [Pankhurst (academic)|Richard Pankhurst] notes that the Birbir is economically important for the discovery in 1904 of deposits of platinum along its course.