From the Wikipedia page 
Guji is one of the zones of the Oromia Region of Ethiopia. Guji is named after a tribe of the Oromo people. Guji is bordered on the south by Borena, on the west by the Southern Nations, Nationalities, and Peoples Region, on the north by the Ganale Dorya River which separates it from Bale and on the east by the Somali Region. The highest point in this zone is Mount Dara Tiniro. Cities and major towns in this Zone include its administrative center, Negele.
The Guji Zone was created in September 2002, when the upland woredas of the Borena Zone were split apart to create i