page_title: Lake Eyre
section_title: Geography
hierarchical_section_title: Lake Eyre / Geography
caption_attribution_description: English: Salt Crust on Lake Eyre gives way to slippery mud
context_page_description: Lake Eyre is the lowest point in Australia, at about 15 m below sea level. When it fills with water, it is the largest lake in Australia, being 144 km long and 77 km wide. It is also in the driest part of Australia, getting only about 100 mm of rain each year. It is in the north of South Australia, about 700 km north of Adelaide. The lake was named after the explorer, Edward Eyre, who was the first Europen to see it in 1840. It is the centre of the Lake Eyre National Park.
context_section_description: Lake Eyre is in the driest desert region of central Australia. It is a large endorheic lake system, which means that the water flows in, but does not flow out. As the water evaporates, the lake dries up leaving a dry salt lake. The lake does not usually completely dry up, there is often water in small areas on the lake surface. The rate that the water dries up is 2.5 m (98 in) per year, that is about 20 times more than the rainfall in the area.
caption: Lake Eyre salt crust
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