Karoo Karoo biome. The number of mainly succulent plant species is very high for an arid area of this size anywhere in the world. The Nama Karoo biome is located entirely on the central plateau mostly at altitudes between 1000 and 1500 m. It incorporates nearly the whole of the historical and geographical Great Karoo, but also includes a portion of southern Namibia's Namaqualand, and South Africa's Bushmanland" (both local geographical names, not names of biomes). It is the second-largest biome in South Africa, and forms the botanical transition between the Fynbos biome to the south and the savannah biome to
Tirari Desert and the Sturt Stony Desert runs aligned with the Birdsville track to the north east. The desert experiences harsh conditions with high temperatures and very low rainfall (mean annual rainfall is below ). The main vehicular access to the desert is via the unpaved Birdsville Track which runs northwards from Marree to Birdsville. The Mungerannie Hotel is the only location between the two towns that provides services. The Tirari Desert region has a number of large cattle stations which are stopping points on the Channel Country aviation mail run. Dulkaninna Station has been run by the same family for 110