Ruaha National Park is Tanzania’s largest national park, covering 20,226 square kilometres (7,809 sq mi). It has rugged, semi-arid bush country, typical of central Tanzania. The Ruaha River flows through the park and gets flooded during the rainy season, otherwise remaining an ephemeral stream with ponds, sand and rocky river bed and banks. It lies within riverine and palustrine wetland ecosystem. Open grasslands, the acacia savannah and the Usangu plains abound in the park. There are reportedly 10,000 elephants, zebras, giraffes, impala, waterbuck and other antelopes, cheetahs, striped and spotted hyena, sable and roan antelope sable and roan antelope, greater kudu with corkscrew horns (which is the park’s emblem) in the park. Of the reported 450 bird species, notable ones are the crested barbet (yellow-and-black bird), endemics such as the yellow-collared lovebird and ashy starling. It is located 128 km west of Iringa.