Eyre Basin

The Eyre Basin is a vast, closed inland drainage basin in Australia, covering approximately 440,150 square miles (1,140,000 square km). It is primarily characterized by plains, low uplands, and extensive dry lake beds. The most notable feature within the basin is Lake Eyre, which is the lowest point on the Australian continent, lying about 50 feet (15 meters) below sea level.12

Normally dry, Lake Eyre only fills completely on average twice a century, though partial fillings occur more frequently. The basin is also a significant source of artesian water, with the Great Artesian Basin underlying much of its area. This artesian water is crucial for irrigation and livestock across the region.13