Anuak is one of the three zones of the Ethiopian Region of Gambela. It was created from former Administrative Zone 1 and Administrative Zone 2 of Gambela. This zone is bordered on the southwest by South Sudan, on southeast by the Southern Nations, Nationalities, and Peoples Region, on the east by Mezhenger Zone, on the northeast by the Oromia Region, and on the northwest by South Sudan and Nuer Zone. Towns in this zone include Gambela, Abobo and Fugnido. The terrain is mostly flat; rivers include the Baro, which is the only navigable river in Ethiopia, the Alwero and the Gilo; major bodies of water include Lakes Alwero and Tata. A notable landmark is the Gambela National Park, which covers a large part of the Zone south of the Baro.