Great Artesian Basin

Large artesian aquifer in Australia

The Great Artesian Basin (GAB) of Australia is the largest and deepest artesian basin in the world, extending over 1,700,000 square kilometres (660,000 sq mi). Measured water temperatures range from 30 to 100 °C (86 to 212 °F). The basin provides the only source of fresh water through much of inland Australia.

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